222090318 has 12 divisors (see below), whose sum is σ = 481195728. Its totient is φ = 74030100.

The previous prime is 222090287. The next prime is 222090331. The reversal of 222090318 is 813090222.

It is a happy number.

It is a super-2 number, since 2×222090318² = 98648218698682248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222090291 and 222090300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6169158 + ... + 6169193.

It is an arithmetic number, because the mean of its divisors is an integer number (40099644).

Almost surely, 2^222090318 is an apocalyptic number.

222090318 is an abundant number, since it is smaller than the sum of its proper divisors (259105410).

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

222090318 is a wasteful number, since it uses less digits than its factorization.

222090318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12338359 (or 12338356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 222090318 is about 14902.6949911753. The cubic root of 222090318 is about 605.5869976186.

The spelling of 222090318 in words is "two hundred twenty-two million, ninety thousand, three hundred eighteen".