222313031 has 4 divisors (see below), whose sum is σ = 225127200. Its totient is φ = 219498864.

The previous prime is 222312949. The next prime is 222313061. The reversal of 222313031 is 130313222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222313031 - 2¹⁸ = 222050887 is a prime.

It is a super-3 number, since 3×222313031³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222313061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406966 + ... + 1407123.

It is an arithmetic number, because the mean of its divisors is an integer number (56281800).

Almost surely, 2^222313031 is an apocalyptic number.

222313031 is a deficient number, since it is larger than the sum of its proper divisors (2814169).

222313031 is an equidigital number, since it uses as much as digits as its factorization.

222313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814168.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 222313031 is about 14910.1653579026. The cubic root of 222313031 is about 605.7893582917.

Adding to 222313031 its reverse (130313222), we get a palindrome (352626253).

The spelling of 222313031 in words is "two hundred twenty-two million, three hundred thirteen thousand, thirty-one".