20012102020011 has 24 divisors (see below), whose sum is σ = 28162454906880. Its totient is φ = 12638602692144.

The previous prime is 20012102019977. The next prime is 20012102020019. The reversal of 20012102020011 is 11002020121002.

It is not a de Polignac number, because 20012102020011 - 2¹⁵ = 20012101987243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012102020019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22169446 + ... + 23054468.

It is an arithmetic number, because the mean of its divisors is an integer number (1173435621120).

Almost surely, 2^{20012102020011} is an apocalyptic number.

20012102020011 is a deficient number, since it is larger than the sum of its proper divisors (8150352886869).

20012102020011 is a wasteful number, since it uses less digits than its factorization.

20012102020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905943 (or 905924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20012102020011 its reverse (11002020121002), we get a palindrome (31014122141013).

The spelling of 20012102020011 in words is "twenty trillion, twelve billion, one hundred two million, twenty thousand, eleven".