20101211012110 has 64 divisors (see below), whose sum is σ = 36403872021504. Its totient is φ = 7991401017600.

The previous prime is 20101211012107. The next prime is 20101211012149. The reversal of 20101211012110 is 1121011210102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1819602607 + ... + 1819613653.

It is an arithmetic number, because the mean of its divisors is an integer number (568810500336).

Almost surely, 2^{20101211012110} is an apocalyptic number.

20101211012110 is a deficient number, since it is larger than the sum of its proper divisors (16302661009394).

20101211012110 is a wasteful number, since it uses less digits than its factorization.

20101211012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13009.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20101211012110 its reverse (1121011210102), we get a palindrome (21222222222212).

The spelling of 20101211012110 in words is "twenty trillion, one hundred one billion, two hundred eleven million, twelve thousand, one hundred ten".