222246320 has 20 divisors (see below), whose sum is σ = 516722880. Its totient is φ = 88898496.

The previous prime is 222246307. The next prime is 222246337. The reversal of 222246320 is 23642222.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388960 + ... + 1389119.

It is an arithmetic number, because the mean of its divisors is an integer number (25836144).

Almost surely, 2^222246320 is an apocalyptic number.

222246320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222246320 is an abundant number, since it is smaller than the sum of its proper divisors (294476560).

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

222246320 is a wasteful number, since it uses less digits than its factorization.

222246320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778092 (or 2778086 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 222246320 is about 14907.9280921260. The cubic root of 222246320 is about 605.7287577701.

Adding to 222246320 its reverse (23642222), we get a palindrome (245888542).

The spelling of 222246320 in words is "two hundred twenty-two million, two hundred forty-six thousand, three hundred twenty".