222165380 has 24 divisors (see below), whose sum is σ = 472456320. Its totient is φ = 87740640.

The previous prime is 222165379. The next prime is 222165413. The reversal of 222165380 is 83561222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68726 + ... + 71885.

It is an arithmetic number, because the mean of its divisors is an integer number (19685680).

Almost surely, 2^222165380 is an apocalyptic number.

222165380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222165380 is an abundant number, since it is smaller than the sum of its proper divisors (250290940).

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

222165380 is a wasteful number, since it uses less digits than its factorization.

222165380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140699 (or 140697 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 222165380 is about 14905.2131819709. The cubic root of 222165380 is about 605.6552152871.

The spelling of 222165380 in words is "two hundred twenty-two million, one hundred sixty-five thousand, three hundred eighty".