422102551961 has 2 divisors, whose sum is σ = 422102551962. Its totient is φ = 422102551960.

The previous prime is 422102551921. The next prime is 422102552021. The reversal of 422102551961 is 169155201224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339708294025 + 82394257936 = 582845^2 + 287044^2 .

It is a cyclic number.

It is not a de Polignac number, because 422102551961 - 2²² = 422098357657 is a prime.

It is not a weakly prime, because it can be changed into another prime (422102551921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211051275980 + 211051275981.

It is an arithmetic number, because the mean of its divisors is an integer number (211051275981).

Almost surely, 2^422102551961 is an apocalyptic number.

It is an amenable number.

422102551961 is a deficient number, since it is larger than the sum of its proper divisors (1).

422102551961 is an equidigital number, since it uses as much as digits as its factorization.

422102551961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 422102551961 in words is "four hundred twenty-two billion, one hundred two million, five hundred fifty-one thousand, nine hundred sixty-one".