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1222232023020 = 2235234718844157
BaseRepresentation
bin10001110010010010101…
…101001001111111101100
311022211210110011220012110
4101302102231021333230
5130011112344214040
62333252522004020
7154206022531461
oct21622255117754
94284713156173
101222232023020
11431389128038
12178a63046610
138b343526a08
1443229025668
1521bd689b980
hex11c92b49fec

1222232023020 has 96 divisors (see below), whose sum is σ = 3647022962688. Its totient is φ = 305124573952.

The previous prime is 1222232023013. The next prime is 1222232023073. The reversal of 1222232023020 is 203202322221.

It is a super-2 number, since 2×12222320230202 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9357219 + ... + 9486938.

It is an arithmetic number, because the mean of its divisors is an integer number (37989822528).

Almost surely, 21222232023020 is an apocalyptic number.

1222232023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222232023020 is an abundant number, since it is smaller than the sum of its proper divisors (2424790939668).

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

1222232023020 is a wasteful number, since it uses less digits than its factorization.

1222232023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18844239 (or 18844237 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 1222232023020 its reverse (203202322221), we get a palindrome (1425434345241).

The spelling of 1222232023020 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-two million, twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 47 60 69 92 94 115 138 141 188 230 235 276 282 345 460 470 564 690 705 940 1081 1380 1410 2162 2820 3243 4324 5405 6486 10810 12972 16215 21620 32430 64860 18844157 37688314 56532471 75376628 94220785 113064942 188441570 226129884 282662355 376883140 433415611 565324710 866831222 885675379 1130649420 1300246833 1733662444 1771350758 2167078055 2600493666 2657026137 3542701516 4334156110 4428376895 5200987332 5314052274 6501234165 8668312220 8856753790 10628104548 13002468330 13285130685 17713507580 20370533717 26004936660 26570261370 40741067434 53140522740 61111601151 81482134868 101852668585 122223202302 203705337170 244446404604 305558005755 407410674340 611116011510 1222232023020