111220101211112 has 16 divisors (see below), whose sum is σ = 208539491590500. Its totient is φ = 55609570120320.

The previous prime is 111220101211069. The next prime is 111220101211123. The reversal of 111220101211112 is 211112101022111.

It can be written as a sum of positive squares in 2 ways, for example, as 111025713691876 + 194387519236 = 10536874^2 + 440894^2 .

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, 59075939 + ... + 60929522.

Almost surely, 2^{111220101211112} is an apocalyptic number.

It is an amenable number.

111220101211112 is a deficient number, since it is larger than the sum of its proper divisors (97319390379388).

111220101211112 is a wasteful number, since it uses less digits than its factorization.

111220101211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120121316 (or 120121312 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111220101211112 its reverse (211112101022111), we get a palindrome (322332202233223).

The spelling of 111220101211112 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred one million, two hundred eleven thousand, one hundred twelve".