111121201021122 has 12 divisors (see below), whose sum is σ = 240762602212470. Its totient is φ = 37040400340368.

The previous prime is 111121201021099. The next prime is 111121201021153. The reversal of 111121201021122 is 221120102121111.

It is a happy number.

111121201021122 is a `hidden beast` number, since 111 + 121 + 201 + 0 + 211 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 89199505813401 + 21921695207721 = 9444549^2 + 4682061^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6173400056729 = 111121201021122 / (1 + 1 + 1 + 1 + 2 + 1 + 2 + 0 + 1 + 0 + 2 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 111121201021095 and 111121201021104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3086700028347 + ... + 3086700028382.

Almost surely, 2^{111121201021122} is an apocalyptic number.

111121201021122 is an abundant number, since it is smaller than the sum of its proper divisors (129641401191348).

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

111121201021122 is a wasteful number, since it uses less digits than its factorization.

111121201021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173400056737 (or 6173400056734 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111121201021122 its reverse (221120102121111), we get a palindrome (332241303142233).

The spelling of 111121201021122 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, twenty-one thousand, one hundred twenty-two".