201012211012021 has 2 divisors, whose sum is σ = 201012211012022. Its totient is φ = 201012211012020.

The previous prime is 201012211012003. The next prime is 201012211012049. The reversal of 201012211012021 is 120210112210102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200987612540100 + 24598471921 = 14177010^2 + 156839^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012211012021 - 2²⁵ = 201012177457589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012211011986 and 201012211012004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012211012001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506105506010 + 100506105506011.

It is an arithmetic number, because the mean of its divisors is an integer number (100506105506011).

Almost surely, 2^{201012211012021} is an apocalyptic number.

It is an amenable number.

201012211012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012211012021 is an equidigital number, since it uses as much as digits as its factorization.

201012211012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201012211012021 its reverse (120210112210102), we get a palindrome (321222323222123).

The spelling of 201012211012021 in words is "two hundred one trillion, twelve billion, two hundred eleven million, twelve thousand, twenty-one".