204222222456 has 128 divisors (see below), whose sum is σ = 629183116800. Its totient is φ = 53929912320.

The previous prime is 204222222433. The next prime is 204222222481. The reversal of 204222222456 is 654222222402.

It is a super-2 number, since 2×204222222456² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649365 + ... + 911108.

It is an arithmetic number, because the mean of its divisors is an integer number (4915493100).

Almost surely, 2^204222222456 is an apocalyptic number.

It is an amenable number.

204222222456 is an abundant number, since it is smaller than the sum of its proper divisors (424960894344).

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

204222222456 is a wasteful number, since it uses less digits than its factorization.

204222222456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560549 (or 1560545 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 204222222456 its reverse (654222222402), we get a palindrome (858444444858).

The spelling of 204222222456 in words is "two hundred four billion, two hundred twenty-two million, two hundred twenty-two thousand, four hundred fifty-six".