202201212120977 has 2 divisors, whose sum is σ = 202201212120978. Its totient is φ = 202201212120976.

The previous prime is 202201212120911. The next prime is 202201212121021. The reversal of 202201212120977 is 779021212102202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147489390319441 + 54711821801536 = 12144521^2 + 7396744^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201212120977 - 2¹⁰ = 202201212119953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202201212120977.

It is not a weakly prime, because it can be changed into another prime (202201212170977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101100606060488 + 101100606060489.

It is an arithmetic number, because the mean of its divisors is an integer number (101100606060489).

Almost surely, 2^{202201212120977} is an apocalyptic number.

It is an amenable number.

202201212120977 is a deficient number, since it is larger than the sum of its proper divisors (1).

202201212120977 is an equidigital number, since it uses as much as digits as its factorization.

202201212120977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 202201212120977 in words is "two hundred two trillion, two hundred one billion, two hundred twelve million, one hundred twenty thousand, nine hundred seventy-seven".