20100122220010 has 64 divisors (see below), whose sum is σ = 41929456937472. Its totient is φ = 6795272457216.

The previous prime is 20100122219963. The next prime is 20100122220041. The reversal of 20100122220010 is 1002222100102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4302499 + ... + 7662358.

It is an arithmetic number, because the mean of its divisors is an integer number (655147764648).

Almost surely, 2^{20100122220010} is an apocalyptic number.

20100122220010 is an abundant number, since it is smaller than the sum of its proper divisors (21829334717462).

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

20100122220010 is a wasteful number, since it uses less digits than its factorization.

20100122220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965207.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20100122220010 its reverse (1002222100102), we get a palindrome (21102344320112).

The spelling of 20100122220010 in words is "twenty trillion, one hundred billion, one hundred twenty-two million, two hundred twenty thousand, ten".