111112020100 has 36 divisors (see below), whose sum is σ = 241187774800. Its totient is φ = 44431040160.

The previous prime is 111112020073. The next prime is 111112020119. The reversal of 111112020100 is 1020211111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155431 + ... + 496369.

Almost surely, 2^111112020100 is an apocalyptic number.

111112020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112020100 is an abundant number, since it is smaller than the sum of its proper divisors (130075754700).

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

111112020100 is a wasteful number, since it uses less digits than its factorization.

111112020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344212 (or 344205 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111112020100 its reverse (1020211111), we get a palindrome (112132231211).

It can be divided in two parts, 111 and 112020100, that added together give a palindrome (112020211).

The spelling of 111112020100 in words is "one hundred eleven billion, one hundred twelve million, twenty thousand, one hundred".