20112100122122 has 16 divisors (see below), whose sum is σ = 32685601842432. Its totient is φ = 9244412640960.

The previous prime is 20112100122113. The next prime is 20112100122151. The reversal of 20112100122122 is 22122100121102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20112100122122.

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, 6878281754 + ... + 6878284677.

It is an arithmetic number, because the mean of its divisors is an integer number (2042850115152).

Almost surely, 2^{20112100122122} is an apocalyptic number.

20112100122122 is a deficient number, since it is larger than the sum of its proper divisors (12573501720310).

20112100122122 is a wasteful number, since it uses less digits than its factorization.

20112100122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13756566493.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112100122122 its reverse (22122100121102), we get a palindrome (42234200243224).

The spelling of 20112100122122 in words is "twenty trillion, one hundred twelve billion, one hundred million, one hundred twenty-two thousand, one hundred twenty-two".