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1111011022220 = 2251111903424267
BaseRepresentation
bin10000001010101101011…
…010101101010110001100
310221012201021020122121112
4100022231122231112030
5121200322310202340
62210220313551152
7143160613605101
oct20125532552614
93835637218545
101111011022220
113991a4837a60
1215b3a34154b8
13809ca091838
143bab7a06aa8
151dd774bb065
hex102ad6ad58c

1111011022220 has 48 divisors (see below), whose sum is σ = 2545445081088. Its totient is φ = 403969114560.

The previous prime is 1111011022207. The next prime is 1111011022229. The reversal of 1111011022220 is 222201101111.

It is a junction number, because it is equal to n+sod(n) for n = 1111011022195 and 1111011022204.

It is not an unprimeable number, because it can be changed into a prime (1111011022229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2406527 + ... + 2830793.

It is an arithmetic number, because the mean of its divisors is an integer number (53030105856).

Almost surely, 21111011022220 is an apocalyptic number.

1111011022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111011022220 is an abundant number, since it is smaller than the sum of its proper divisors (1434434058868).

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

1111011022220 is a wasteful number, since it uses less digits than its factorization.

1111011022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436190 (or 436188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111011022220 its reverse (222201101111), we get a palindrome (1333212123331).

The spelling of 1111011022220 in words is "one trillion, one hundred eleven billion, eleven million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 11903 23806 47612 59515 119030 130933 238060 261866 424267 523732 654665 848534 1309330 1697068 2121335 2618660 4242670 4666937 8485340 9333874 18667748 23334685 46669370 93338740 5050050101 10100100202 20200200404 25250250505 50500501010 55550551111 101001002020 111101102222 222202204444 277752755555 555505511110 1111011022220