422485925221 has 2 divisors, whose sum is σ = 422485925222. Its totient is φ = 422485925220.

The previous prime is 422485925189. The next prime is 422485925297. The reversal of 422485925221 is 122529584224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222770784196 + 199715141025 = 471986^2 + 446895^2 .

It is a cyclic number.

It is not a de Polignac number, because 422485925221 - 2⁵ = 422485925189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422485923221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211242962610 + 211242962611.

It is an arithmetic number, because the mean of its divisors is an integer number (211242962611).

Almost surely, 2^422485925221 is an apocalyptic number.

It is an amenable number.

422485925221 is a deficient number, since it is larger than the sum of its proper divisors (1).

422485925221 is an equidigital number, since it uses as much as digits as its factorization.

422485925221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 46.

The spelling of 422485925221 in words is "four hundred twenty-two billion, four hundred eighty-five million, nine hundred twenty-five thousand, two hundred twenty-one".