111201021022122 has 24 divisors (see below), whose sum is σ = 240937202060100. Its totient is φ = 37066752159360.

The previous prime is 111201021022109. The next prime is 111201021022139. The reversal of 111201021022122 is 221220120102111.

111201021022122 is a `hidden beast` number, since 1 + 11 + 201 + 0 + 210 + 221 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87198262676001 + 24002758346121 = 9338001^2 + 4899261^2 .

It is a super-2 number, since 2×111201021022122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111201021022095 and 111201021022104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18537279 + ... + 23791442.

Almost surely, 2^{111201021022122} is an apocalyptic number.

111201021022122 is an abundant number, since it is smaller than the sum of its proper divisors (129736181037978).

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

111201021022122 is a wasteful number, since it uses less digits than its factorization.

111201021022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42474678 (or 42474675 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111201021022122 its reverse (221220120102111), we get a palindrome (332421141124233).

The spelling of 111201021022122 in words is "one hundred eleven trillion, two hundred one billion, twenty-one million, twenty-two thousand, one hundred twenty-two".