222131322 has 40 divisors (see below), whose sum is σ = 568847136. Its totient is φ = 63465768.

The previous prime is 222131279. The next prime is 222131359. The reversal of 222131322 is 223131222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222131295 and 222131304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 96808 + ... + 99075.

Almost surely, 2^222131322 is an apocalyptic number.

222131322 is an abundant number, since it is smaller than the sum of its proper divisors (346715814).

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

222131322 is a wasteful number, since it uses less digits than its factorization.

222131322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195904 (or 195895 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222131322 is about 14904.0706520065. The cubic root of 222131322 is about 605.6242646810.

Adding to 222131322 its reverse (223131222), we get a palindrome (445262544).

The spelling of 222131322 in words is "two hundred twenty-two million, one hundred thirty-one thousand, three hundred twenty-two".