111102122100 has 72 divisors (see below), whose sum is σ = 321990863488. Its totient is φ = 29577888000.

The previous prime is 111102122057. The next prime is 111102122141. The reversal of 111102122100 is 1221201111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127804 + ... + 488403.

Almost surely, 2^111102122100 is an apocalyptic number.

111102122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102122100 is an abundant number, since it is smaller than the sum of its proper divisors (210888741388).

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

111102122100 is a wasteful number, since it uses less digits than its factorization.

111102122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616825 (or 616818 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111102122100 its reverse (1221201111), we get a palindrome (112323323211).

The spelling of 111102122100 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-two thousand, one hundred".