422012021761 has 4 divisors (see below), whose sum is σ = 460376751024. Its totient is φ = 383647292500.

The previous prime is 422012021747. The next prime is 422012021813. The reversal of 422012021761 is 167120210224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422012021761 - 2¹⁷ = 422011890689 is a prime.

It is a super-2 number, since 2×422012021761² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422012021261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19182364615 + ... + 19182364636.

It is an arithmetic number, because the mean of its divisors is an integer number (115094187756).

Almost surely, 2^422012021761 is an apocalyptic number.

It is an amenable number.

422012021761 is a deficient number, since it is larger than the sum of its proper divisors (38364729263).

422012021761 is a wasteful number, since it uses less digits than its factorization.

422012021761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38364729262.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 422012021761 its reverse (167120210224), we get a palindrome (589132231985).

The spelling of 422012021761 in words is "four hundred twenty-two billion, twelve million, twenty-one thousand, seven hundred sixty-one".