111311120122192 has 20 divisors (see below), whose sum is σ = 217038959542516. Its totient is φ = 55301066046720.

The previous prime is 111311120122063. The next prime is 111311120122193. The reversal of 111311120122192 is 291221021113111.

It can be written as a sum of positive squares in 2 ways, for example, as 77742028316736 + 33569091805456 = 8817144^2 + 5793884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111311120122192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311120122193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22155873309 + ... + 22155878332.

Almost surely, 2^{111311120122192} is an apocalyptic number.

It is an amenable number.

111311120122192 is a deficient number, since it is larger than the sum of its proper divisors (105727839420324).

111311120122192 is a wasteful number, since it uses less digits than its factorization.

111311120122192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44311751806 (or 44311751800 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 111311120122192 in words is "one hundred eleven trillion, three hundred eleven billion, one hundred twenty million, one hundred twenty-two thousand, one hundred ninety-two".