122021021219957 has 2 divisors, whose sum is σ = 122021021219958. Its totient is φ = 122021021219956.

The previous prime is 122021021219927. The next prime is 122021021220029. The reversal of 122021021219957 is 759912120120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119666665479076 + 2354355740881 = 10939226^2 + 1534391^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021021219957 - 2¹⁰ = 122021021218933 is a prime.

It is a super-2 number, since 2×122021021219957² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021021219927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010510609978 + 61010510609979.

It is an arithmetic number, because the mean of its divisors is an integer number (61010510609979).

Almost surely, 2^{122021021219957} is an apocalyptic number.

It is an amenable number.

122021021219957 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021021219957 is an equidigital number, since it uses as much as digits as its factorization.

122021021219957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 122021021219957 in words is "one hundred twenty-two trillion, twenty-one billion, twenty-one million, two hundred nineteen thousand, nine hundred fifty-seven".