222131312231 has 8 divisors (see below), whose sum is σ = 229313668224. Its totient is φ = 214950008160.

The previous prime is 222131312213. The next prime is 222131312257. The reversal of 222131312231 is 132213131222.

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 222131312231 - 2¹⁴ = 222131295847 is a prime.

It is a super-2 number, since 2×222131312231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222131312197 and 222131312206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131302231) 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, 177941 + ... + 689873.

It is an arithmetic number, because the mean of its divisors is an integer number (28664208528).

Almost surely, 2^222131312231 is an apocalyptic number.

222131312231 is a deficient number, since it is larger than the sum of its proper divisors (7182355993).

222131312231 is a wasteful number, since it uses less digits than its factorization.

222131312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525961.

The product of its digits is 864, while the sum is 23.

Adding to 222131312231 its reverse (132213131222), we get a palindrome (354344443453).

The spelling of 222131312231 in words is "two hundred twenty-two billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirty-one".