222212231 has 8 divisors (see below), whose sum is σ = 226443600. Its totient is φ = 217996480.

The previous prime is 222212209. The next prime is 222212233. The reversal of 222212231 is 132212222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222212231 - 2²⁶ = 155103367 is a prime.

It is a super-2 number, since 2×222212231² = 98756551211994722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27125 + ... + 34353.

It is an arithmetic number, because the mean of its divisors is an integer number (28305450).

Almost surely, 2^222212231 is an apocalyptic number.

222212231 is a deficient number, since it is larger than the sum of its proper divisors (4231369).

222212231 is an equidigital number, since it uses as much as digits as its factorization.

222212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809.

The product of its digits is 192, while the sum is 17.

The square root of 222212231 is about 14906.7847304508. The cubic root of 222212231 is about 605.6977865135.

Adding to 222212231 its reverse (132212222), we get a palindrome (354424453).

Subtracting from 222212231 its reverse (132212222), we obtain a palindrome (90000009).

The spelling of 222212231 in words is "two hundred twenty-two million, two hundred twelve thousand, two hundred thirty-one".