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1220301022048 = 252337431042123
BaseRepresentation
bin10001110000011111100…
…110111110001101100000
311022122210212122212211221
4101300133212332031200
5124443134030201143
62332333141544424
7154110124354153
oct21603746761540
94278725585757
101220301022048
11430588128469
12178604415114
138b0c645a6a4
14430c47abc9a
1521b220b82ed
hex11c1f9be360

1220301022048 has 96 divisors (see below), whose sum is σ = 2634556167936. Its totient is φ = 554642339328.

The previous prime is 1220301022021. The next prime is 1220301022049. The reversal of 1220301022048 is 8402201030221.

It is a super-2 number, since 2×12203010220482 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220301022049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649915 + ... + 1692037.

It is an arithmetic number, because the mean of its divisors is an integer number (27443293416).

Almost surely, 21220301022048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220301022048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317278083968).

1220301022048 is an abundant number, since it is smaller than the sum of its proper divisors (1414255145888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220301022048 is a wasteful number, since it uses less digits than its factorization.

1220301022048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042236 (or 1042228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1220301022048 its reverse (8402201030221), we get a palindrome (9622502052269).

The spelling of 1220301022048 in words is "one trillion, two hundred twenty billion, three hundred one million, twenty-two thousand, forty-eight".

Divisors: 1 2 4 8 16 23 32 37 43 46 74 86 92 148 172 184 296 344 368 592 688 736 851 989 1184 1376 1591 1702 1978 3182 3404 3956 6364 6808 7912 12728 13616 15824 25456 27232 31648 36593 50912 73186 146372 292744 585488 1042123 1170976 2084246 4168492 8336984 16673968 23968829 33347936 38558551 44811289 47937658 77117102 89622578 95875316 154234204 179245156 191750632 308468408 358490312 383501264 616936816 716980624 767002528 886846673 1030659647 1233873632 1433961248 1658017693 1773693346 2061319294 3316035386 3547386692 4122638588 6632070772 7094773384 8245277176 13264141544 14189546768 16490554352 26528283088 28379093536 32981108704 38134406939 53056566176 76268813878 152537627756 305075255512 610150511024 1220301022048