20012122121002 has 16 divisors (see below), whose sum is σ = 32787487633824. Its totient is φ = 9085202838000.

The previous prime is 20012122120997. The next prime is 20012122121027.

It is a happy number.

20012122121002 is nontrivially palindromic in base 10.

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 7 ways as a sum of consecutive naturals, for example, 560797149 + ... + 560832832.

It is an arithmetic number, because the mean of its divisors is an integer number (2049217977114).

Almost surely, 2^{20012122121002} is an apocalyptic number.

20012122121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20012122121002 is a deficient number, since it is larger than the sum of its proper divisors (12775365512822).

20012122121002 is a wasteful number, since it uses less digits than its factorization.

20012122121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121630805.

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 2001212 and 2121002, that added together give a palindrome (4122214).

The spelling of 20012122121002 in words is "twenty trillion, twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, two".