20001211012112 has 40 divisors (see below), whose sum is σ = 42313824500832. Its totient is φ = 9083171897600.

The previous prime is 20001211012109. The next prime is 20001211012141. The reversal of 20001211012112 is 21121011210002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51604214 + ... + 51990357.

Almost surely, 2^{20001211012112} is an apocalyptic number.

20001211012112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20001211012112 is an abundant number, since it is smaller than the sum of its proper divisors (22312613488720).

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

20001211012112 is a wasteful number, since it uses less digits than its factorization.

20001211012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103595687 (or 103595681 counting only the distinct ones).

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

Adding to 20001211012112 its reverse (21121011210002), we get a palindrome (41122222222114).

The spelling of 20001211012112 in words is "twenty trillion, one billion, two hundred eleven million, twelve thousand, one hundred twelve".