111002212100 has 36 divisors (see below), whose sum is σ = 259403634084. Its totient is φ = 40985431680.

The previous prime is 111002212073. The next prime is 111002212183. The reversal of 111002212100 is 1212200111.

It can be written as a sum of positive squares in 6 ways, for example, as 22083743236 + 88918468864 = 148606^2 + 298192^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 42691859 + ... + 42694458.

Almost surely, 2^111002212100 is an apocalyptic number.

111002212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111002212100 is an abundant number, since it is smaller than the sum of its proper divisors (148401421984).

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

111002212100 is a wasteful number, since it uses less digits than its factorization.

111002212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85386344 (or 85386337 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111002212100 its reverse (1212200111), we get a palindrome (112214412211).

The spelling of 111002212100 in words is "one hundred eleven billion, two million, two hundred twelve thousand, one hundred".