222990637824 has 288 divisors, whose sum is σ = 672616627200. Its totient is φ = 72850821120.

The previous prime is 222990637817. The next prime is 222990637867. The reversal of 222990637824 is 428736099222.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 188814514 + ... + 188815694.

It is an arithmetic number, because the mean of its divisors is an integer number (2335474400).

Almost surely, 2^222990637824 is an apocalyptic number.

222990637824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222990637824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336308313600).

222990637824 is an abundant number, since it is smaller than the sum of its proper divisors (449625989376).

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

222990637824 is a wasteful number, since it uses less digits than its factorization.

222990637824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 222990637824 in words is "two hundred twenty-two billion, nine hundred ninety million, six hundred thirty-seven thousand, eight hundred twenty-four".