20101120211012 has 36 divisors (see below), whose sum is σ = 36122862260016. Its totient is φ = 9787166872560.

The previous prime is 20101120210987. The next prime is 20101120211021. The reversal of 20101120211012 is 21011202110102.

It is a super-2 number, since 2×20101120211012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657418 + ... + 6553569.

It is an arithmetic number, because the mean of its divisors is an integer number (1003412840556).

Almost surely, 2^{20101120211012} is an apocalyptic number.

It is an amenable number.

20101120211012 is a deficient number, since it is larger than the sum of its proper divisors (16021742049004).

20101120211012 is a wasteful number, since it uses less digits than its factorization.

20101120211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211408 (or 8211363 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20101120211012 its reverse (21011202110102), we get a palindrome (41112322321114).

The spelling of 20101120211012 in words is "twenty trillion, one hundred one billion, one hundred twenty million, two hundred eleven thousand, twelve".