202110021022057 has 2 divisors, whose sum is σ = 202110021022058. Its totient is φ = 202110021022056.

The previous prime is 202110021022037. The next prime is 202110021022111. The reversal of 202110021022057 is 750220120011202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108110480869161 + 93999540152896 = 10397619^2 + 9695336^2 .

It is a cyclic number.

It is not a de Polignac number, because 202110021022057 - 2⁴⁷ = 61372532666729 is a prime.

It is a super-2 number, since 2×202110021022057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202110021022037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055010511028 + 101055010511029.

It is an arithmetic number, because the mean of its divisors is an integer number (101055010511029).

Almost surely, 2^{202110021022057} is an apocalyptic number.

It is an amenable number.

202110021022057 is a deficient number, since it is larger than the sum of its proper divisors (1).

202110021022057 is an equidigital number, since it uses as much as digits as its factorization.

202110021022057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 202110021022057 its reverse (750220120011202), we get a palindrome (952330141033259).

The spelling of 202110021022057 in words is "two hundred two trillion, one hundred ten billion, twenty-one million, twenty-two thousand, fifty-seven".