222193900720 has 160 divisors (see below), whose sum is σ = 579267495936. Its totient is φ = 78550041600.

The previous prime is 222193900693. The next prime is 222193900723. The reversal of 222193900720 is 27009391222.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 222193900720.

It is not an unprimeable number, because it can be changed into a prime (222193900723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59615497 + ... + 59619223.

Almost surely, 2^222193900720 is an apocalyptic number.

222193900720 is a gapful number since it is divisible by the number (20) 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 222193900720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289633747968).

222193900720 is an abundant number, since it is smaller than the sum of its proper divisors (357073595216).

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

222193900720 is a wasteful number, since it uses less digits than its factorization.

222193900720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619 (or 5613 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 222193900720 in words is "two hundred twenty-two billion, one hundred ninety-three million, nine hundred thousand, seven hundred twenty".