2021202011137 has 2 divisors, whose sum is σ = 2021202011138. Its totient is φ = 2021202011136.

The previous prime is 2021202011111. The next prime is 2021202011141. The reversal of 2021202011137 is 7311102021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1607661700096 + 413540311041 = 1267936^2 + 643071^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021202011137 - 2²³ = 2021193622529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021202017137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010601005568 + 1010601005569.

It is an arithmetic number, because the mean of its divisors is an integer number (1010601005569).

Almost surely, 2^{2021202011137} is an apocalyptic number.

It is an amenable number.

2021202011137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021202011137 is an equidigital number, since it uses as much as digits as its factorization.

2021202011137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 2021202011137 its reverse (7311102021202), we get a palindrome (9332304032339).

The spelling of 2021202011137 in words is "two trillion, twenty-one billion, two hundred two million, eleven thousand, one hundred thirty-seven".