222111212231 has 8 divisors (see below), whose sum is σ = 226899152640. Its totient is φ = 217325862328.

The previous prime is 222111212207. The next prime is 222111212261. The reversal of 222111212231 is 132212111222.

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 222111212231 - 2²² = 222107017927 is a prime.

It is a super-2 number, since 2×222111212231² (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 (222111212261) 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, 473801 + ... + 817746.

It is an arithmetic number, because the mean of its divisors is an integer number (28362394080).

Almost surely, 2^222111212231 is an apocalyptic number.

222111212231 is a deficient number, since it is larger than the sum of its proper divisors (4787940409).

222111212231 is a wasteful number, since it uses less digits than its factorization.

222111212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295253.

The product of its digits is 192, while the sum is 20.

Adding to 222111212231 its reverse (132212111222), we get a palindrome (354323323453).

The spelling of 222111212231 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred thirty-one".