222490444320 has 144 divisors (see below), whose sum is σ = 772117557120. Its totient is φ = 58325156352.

The previous prime is 222490444289. The next prime is 222490444357. The reversal of 222490444320 is 23444094222.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×222490444320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224424 + ... + 1394343.

It is an arithmetic number, because the mean of its divisors is an integer number (5361927480).

Almost surely, 2^222490444320 is an apocalyptic number.

222490444320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222490444320 is an abundant number, since it is smaller than the sum of its proper divisors (549627112800).

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

222490444320 is a wasteful number, since it uses less digits than its factorization.

222490444320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618847 (or 2618836 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 222490444320 in words is "two hundred twenty-two billion, four hundred ninety million, four hundred forty-four thousand, three hundred twenty".