111021112122 has 32 divisors (see below), whose sum is σ = 222387552000. Its totient is φ = 36949523520.

The previous prime is 111021112099. The next prime is 111021112127. The reversal of 111021112122 is 221211120111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111021112127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19308504 + ... + 19314252.

It is an arithmetic number, because the mean of its divisors is an integer number (6949611000).

Almost surely, 2^111021112122 is an apocalyptic number.

111021112122 is an abundant number, since it is smaller than the sum of its proper divisors (111366439878).

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

111021112122 is a wasteful number, since it uses less digits than its factorization.

111021112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10198.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111021112122 its reverse (221211120111), we get a palindrome (332232232233).

The spelling of 111021112122 in words is "one hundred eleven billion, twenty-one million, one hundred twelve thousand, one hundred twenty-two".