422155312342204 has 72 divisors (see below), whose sum is σ = 860096414081520. Its totient is φ = 180774531592704.

The previous prime is 422155312342157. The next prime is 422155312342207. The reversal of 422155312342204 is 402243213551224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422155312342207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1438991367 + ... + 1439284705.

It is an arithmetic number, because the mean of its divisors is an integer number (11945783528910).

Almost surely, 2^{422155312342204} is an apocalyptic number.

It is an amenable number.

422155312342204 is an abundant number, since it is smaller than the sum of its proper divisors (437941101739316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422155312342204 is a wasteful number, since it uses less digits than its factorization.

422155312342204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299387 (or 299378 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 422155312342204 its reverse (402243213551224), we get a palindrome (824398525893428).

The spelling of 422155312342204 in words is "four hundred twenty-two trillion, one hundred fifty-five billion, three hundred twelve million, three hundred forty-two thousand, two hundred four".