202121010113051 has 2 divisors, whose sum is σ = 202121010113052. Its totient is φ = 202121010113050.

The previous prime is 202121010113027. The next prime is 202121010113089. The reversal of 202121010113051 is 150311010121202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202121010113051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (202121010193051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060505056525 + 101060505056526.

It is an arithmetic number, because the mean of its divisors is an integer number (101060505056526).

Almost surely, 2^{202121010113051} is an apocalyptic number.

202121010113051 is a deficient number, since it is larger than the sum of its proper divisors (1).

202121010113051 is an equidigital number, since it uses as much as digits as its factorization.

202121010113051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 202121010113051 its reverse (150311010121202), we get a palindrome (352432020234253).

The spelling of 202121010113051 in words is "two hundred two trillion, one hundred twenty-one billion, ten million, one hundred thirteen thousand, fifty-one".