111112120220 has 12 divisors (see below), whose sum is σ = 233335452504. Its totient is φ = 44444848080.

The previous prime is 111112120211. The next prime is 111112120253. The reversal of 111112120220 is 22021211111.

It is a junction number, because it is equal to n+sod(n) for n = 111112120195 and 111112120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777802986 + ... + 2777803025.

It is an arithmetic number, because the mean of its divisors is an integer number (19444621042).

Almost surely, 2^111112120220 is an apocalyptic number.

111112120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112120220 is an abundant number, since it is smaller than the sum of its proper divisors (122223332284).

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

111112120220 is a wasteful number, since it uses less digits than its factorization.

111112120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555606020 (or 5555606018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111112120220 its reverse (22021211111), we get a palindrome (133133331331).

The spelling of 111112120220 in words is "one hundred eleven billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty".