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2111111200122 = 231732297885427
BaseRepresentation
bin11110101110001000000…
…010000111110101111010
321110211010222011122100020
4132232020002013311322
5234042023431400442
64253455303351310
7305344206060021
oct36561002076572
97424128148306
102111111200122
11744354266001
122a1192a52536
13124100033b32
147426d4898b8
1539dac91e9ec
hex1eb88087d7a

2111111200122 has 32 divisors (see below), whose sum is σ = 4248481879872. Its totient is φ = 699330705024.

The previous prime is 2111111200117. The next prime is 2111111200147. The reversal of 2111111200122 is 2210021111112.

It is a happy number.

It is a super-2 number, since 2×21111112001222 (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 15 ways as a sum of consecutive naturals, for example, 1941573 + ... + 2826999.

It is an arithmetic number, because the mean of its divisors is an integer number (132765058746).

Almost surely, 22111111200122 is an apocalyptic number.

2111111200122 is an abundant number, since it is smaller than the sum of its proper divisors (2137370679750).

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

2111111200122 is a wasteful number, since it uses less digits than its factorization.

2111111200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887902.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111111200122 its reverse (2210021111112), we get a palindrome (4321132311234).

The spelling of 2111111200122 in words is "two trillion, one hundred eleven billion, one hundred eleven million, two hundred thousand, one hundred twenty-two".

Divisors: 1 2 3 6 173 346 519 1038 2297 4594 6891 13782 397381 794762 885427 1192143 1770854 2384286 2656281 5312562 153178871 306357742 459536613 919073226 2033825819 4067651638 6101477457 12202954914 351851866687 703703733374 1055555600061 2111111200122