122011002221957 has 2 divisors, whose sum is σ = 122011002221958. Its totient is φ = 122011002221956.

The previous prime is 122011002221897. The next prime is 122011002222037. The reversal of 122011002221957 is 759122200110221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94976836307236 + 27034165914721 = 9745606^2 + 5199439^2 .

It is an emirp because it is prime and its reverse (759122200110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122011002221957 - 2²⁴ = 122010985444741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011002221657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005501110978 + 61005501110979.

It is an arithmetic number, because the mean of its divisors is an integer number (61005501110979).

Almost surely, 2^{122011002221957} is an apocalyptic number.

It is an amenable number.

122011002221957 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011002221957 is an equidigital number, since it uses as much as digits as its factorization.

122011002221957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 122011002221957 in words is "one hundred twenty-two trillion, eleven billion, two million, two hundred twenty-one thousand, nine hundred fifty-seven".