422552210989 has 2 divisors, whose sum is σ = 422552210990. Its totient is φ = 422552210988.

The previous prime is 422552210959. The next prime is 422552211043. The reversal of 422552210989 is 989012255224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285535266025 + 137016944964 = 534355^2 + 370158^2 .

It is a cyclic number.

It is not a de Polignac number, because 422552210989 - 2³⁵ = 388192472621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422552210909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211276105494 + 211276105495.

It is an arithmetic number, because the mean of its divisors is an integer number (211276105495).

Almost surely, 2^422552210989 is an apocalyptic number.

It is an amenable number.

422552210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

422552210989 is an equidigital number, since it uses as much as digits as its factorization.

422552210989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 422552210989 in words is "four hundred twenty-two billion, five hundred fifty-two million, two hundred ten thousand, nine hundred eighty-nine".