222217960 has 24 divisors (see below), whose sum is σ = 500202630. Its totient is φ = 88849472.

The previous prime is 222217949. The next prime is 222217969. The reversal of 222217960 is 69712222.

It can be written as a sum of positive squares in 3 ways, for example, as 105966436 + 116251524 = 10294^2 + 10782^2 .

It is not an unprimeable number, because it can be changed into a prime (222217969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93102 + ... + 95458.

Almost surely, 2^222217960 is an apocalyptic number.

222217960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222217960 is an abundant number, since it is smaller than the sum of its proper divisors (277984670).

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

222217960 is an frugal number, since it uses more digits than its factorization.

222217960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 222217960 is about 14906.9768900337. The cubic root of 222217960 is about 605.7029917667.

The spelling of 222217960 in words is "two hundred twenty-two million, two hundred seventeen thousand, nine hundred sixty".