111101221122 has 64 divisors (see below), whose sum is σ = 230559436800. Its totient is φ = 35662291200.

The previous prime is 111101221117. The next prime is 111101221163. The reversal of 111101221122 is 221122101111.

It is a happy 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, 27849904 + ... + 27853892.

It is an arithmetic number, because the mean of its divisors is an integer number (3602491200).

Almost surely, 2^111101221122 is an apocalyptic number.

111101221122 is an abundant number, since it is smaller than the sum of its proper divisors (119458215678).

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

111101221122 is a wasteful number, since it uses less digits than its factorization.

111101221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291.

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

Adding to 111101221122 its reverse (221122101111), we get a palindrome (332223322233).

The spelling of 111101221122 in words is "one hundred eleven billion, one hundred one million, two hundred twenty-one thousand, one hundred twenty-two".