202012000012021 has 16 divisors (see below), whose sum is σ = 202691090145280. Its totient is φ = 201334024148400.

The previous prime is 202012000012003. The next prime is 202012000012027. The reversal of 202012000012021 is 120210000210202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202012000012021 - 2⁴³ = 193215906989813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202012000011992 and 202012000012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012000012027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1527053746 + ... + 1527186028.

It is an arithmetic number, because the mean of its divisors is an integer number (12668193134080).

Almost surely, 2^{202012000012021} is an apocalyptic number.

It is an amenable number.

202012000012021 is a deficient number, since it is larger than the sum of its proper divisors (679090133259).

202012000012021 is a wasteful number, since it uses less digits than its factorization.

202012000012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136456.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202012000012021 its reverse (120210000210202), we get a palindrome (322222000222223).

The spelling of 202012000012021 in words is "two hundred two trillion, twelve billion, twelve thousand, twenty-one".