20112122 has 16 divisors (see below), whose sum is σ = 32548392. Its totient is φ = 9285120.

The previous prime is 20112119. The next prime is 20112133. The reversal of 20112122 is 22121102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16313521 + 3798601 = 4039^2 + 1949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3779 + ... + 7382.

Almost surely, 2^20112122 is an apocalyptic number.

20112122 is a deficient number, since it is larger than the sum of its proper divisors (12436270).

20112122 is a wasteful number, since it uses less digits than its factorization.

20112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20112122 is about 4484.6540557773. The cubic root of 20112122 is about 271.9480599353.

Adding to 20112122 its reverse (22121102), we get a palindrome (42233224).

The spelling of 20112122 in words is "twenty million, one hundred twelve thousand, one hundred twenty-two".