111020102021122 has 12 divisors (see below), whose sum is σ = 193718749445190. Its totient is φ = 47580043723296.

The previous prime is 111020102021107. The next prime is 111020102021161. The reversal of 111020102021122 is 221120201020111.

It can be written as a sum of positive squares in only one way, i.e., 97126524167841 + 13893577853281 = 9855279^2 + 3727409^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111020102021096 and 111020102021105.

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, 566429091847 + ... + 566429092042.

Almost surely, 2^{111020102021122} is an apocalyptic number.

111020102021122 is a deficient number, since it is larger than the sum of its proper divisors (82698647424068).

111020102021122 is a wasteful number, since it uses less digits than its factorization.

111020102021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132858183905 (or 1132858183898 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111020102021122 its reverse (221120201020111), we get a palindrome (332140303041233).

The spelling of 111020102021122 in words is "one hundred eleven trillion, twenty billion, one hundred two million, twenty-one thousand, one hundred twenty-two".