222112310231 has 4 divisors (see below), whose sum is σ = 253842640272. Its totient is φ = 190381980192.

The previous prime is 222112310227. The next prime is 222112310263. The reversal of 222112310231 is 132013211222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132013211222 = 2 ⋅66006605611.

It is a cyclic number.

It is not a de Polignac number, because 222112310231 - 2² = 222112310227 is a prime.

It is a super-2 number, since 2×222112310231² (a number of 23 digits) 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 (222112310531) 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, 15865165010 + ... + 15865165023.

It is an arithmetic number, because the mean of its divisors is an integer number (63460660068).

Almost surely, 2^222112310231 is an apocalyptic number.

222112310231 is a deficient number, since it is larger than the sum of its proper divisors (31730330041).

222112310231 is an equidigital number, since it uses as much as digits as its factorization.

222112310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31730330040.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222112310231 its reverse (132013211222), we get a palindrome (354125521453).

Subtracting from 222112310231 its reverse (132013211222), we obtain a palindrome (90099099009).

The spelling of 222112310231 in words is "two hundred twenty-two billion, one hundred twelve million, three hundred ten thousand, two hundred thirty-one".