202201102020251 has 2 divisors, whose sum is σ = 202201102020252. Its totient is φ = 202201102020250.

The previous prime is 202201102020193. The next prime is 202201102020263. The reversal of 202201102020251 is 152020201102202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202201102020251 - 2¹⁰ = 202201102019227 is a prime.

It is a super-2 number, since 2×202201102020251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202201102070251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101100551010125 + 101100551010126.

It is an arithmetic number, because the mean of its divisors is an integer number (101100551010126).

Almost surely, 2^{202201102020251} is an apocalyptic number.

202201102020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

202201102020251 is an equidigital number, since it uses as much as digits as its factorization.

202201102020251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 202201102020251 its reverse (152020201102202), we get a palindrome (354221303122453).

The spelling of 202201102020251 in words is "two hundred two trillion, two hundred one billion, one hundred two million, twenty thousand, two hundred fifty-one".