202010120000021 has 2 divisors, whose sum is σ = 202010120000022. Its totient is φ = 202010120000020.

The previous prime is 202010120000009. The next prime is 202010120000033. The reversal of 202010120000021 is 120000021010202.

It is a happy number.

202010120000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (202010120000009) and next prime (202010120000033).

It can be written as a sum of positive squares in only one way, i.e., 122915582092900 + 79094537907121 = 11086730^2 + 8893511^2 .

It is a cyclic number.

It is not a de Polignac number, because 202010120000021 - 2⁴² = 197612073488917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202010119999957 and 202010120000011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202010120000041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005060000010 + 101005060000011.

It is an arithmetic number, because the mean of its divisors is an integer number (101005060000011).

Almost surely, 2^{202010120000021} is an apocalyptic number.

It is an amenable number.

202010120000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

202010120000021 is an equidigital number, since it uses as much as digits as its factorization.

202010120000021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202010120000021 its reverse (120000021010202), we get a palindrome (322010141010223).

The spelling of 202010120000021 in words is "two hundred two trillion, ten billion, one hundred twenty million, twenty-one", and thus it is an aban number.