111202210120 has 16 divisors (see below), whose sum is σ = 250204972860. Its totient is φ = 44480884032.

The previous prime is 111202210117. The next prime is 111202210121. The reversal of 111202210120 is 21012202111.

It can be written as a sum of positive squares in 2 ways, for example, as 105350878084 + 5851332036 = 324578^2 + 76494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111202210120.

It is not an unprimeable number, because it can be changed into a prime (111202210121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390027587 + ... + 1390027666.

Almost surely, 2^111202210120 is an apocalyptic number.

111202210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202210120 is an abundant number, since it is smaller than the sum of its proper divisors (139002762740).

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

111202210120 is a wasteful number, since it uses less digits than its factorization.

111202210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780055264 (or 2780055260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111202210120 its reverse (21012202111), we get a palindrome (132214412231).

The spelling of 111202210120 in words is "one hundred eleven billion, two hundred two million, two hundred ten thousand, one hundred twenty".