222212031 has 8 divisors (see below), whose sum is σ = 296611584. Its totient is φ = 147976920.

The previous prime is 222212009. The next prime is 222212063. The reversal of 222212031 is 130212222.

It is a happy number.

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

It is not a de Polignac number, because 222212031 - 2⁷ = 222211903 is a prime.

It is a super-2 number, since 2×222212031² = 98756373442289922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222212031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212531) 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, 37921 + ... + 43386.

It is an arithmetic number, because the mean of its divisors is an integer number (37076448).

Almost surely, 2^222212031 is an apocalyptic number.

222212031 is a deficient number, since it is larger than the sum of its proper divisors (74399553).

222212031 is an equidigital number, since it uses as much as digits as its factorization.

222212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82221.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222212031 is about 14906.7780220945. The cubic root of 222212031 is about 605.6976047959.

Adding to 222212031 its reverse (130212222), we get a palindrome (352424253).

The spelling of 222212031 in words is "two hundred twenty-two million, two hundred twelve thousand, thirty-one".