111020022012120 has 128 divisors (see below), whose sum is σ = 358812292708800. Its totient is φ = 27317931393024.

The previous prime is 111020022012083. The next prime is 111020022012139. The reversal of 111020022012120 is 21210220020111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111020022012120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8883585 + ... + 17348144.

Almost surely, 2^{111020022012120} is an apocalyptic number.

111020022012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020022012120 is an abundant number, since it is smaller than the sum of its proper divisors (247792270696680).

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

111020022012120 is a wasteful number, since it uses less digits than its factorization.

111020022012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26234469 (or 26234465 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111020022012120 its reverse (21210220020111), we get a palindrome (132230242032231).

The spelling of 111020022012120 in words is "one hundred eleven trillion, twenty billion, twenty-two million, twelve thousand, one hundred twenty".