222311111231 has 6 divisors (see below), whose sum is σ = 244358494296. Its totient is φ = 202101010100.

The previous prime is 222311111227. The next prime is 222311111233. The reversal of 222311111231 is 132111113222.

It is not a de Polignac number, because 222311111231 - 2² = 222311111227 is a prime.

It is a super-2 number, since 2×222311111231² (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 (222311111233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 918640835 + ... + 918641076.

It is an arithmetic number, because the mean of its divisors is an integer number (40726415716).

Almost surely, 2^222311111231 is an apocalyptic number.

222311111231 is a deficient number, since it is larger than the sum of its proper divisors (22047383065).

222311111231 is a wasteful number, since it uses less digits than its factorization.

222311111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837281933 (or 1837281922 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 222311111231 its reverse (132111113222), we get a palindrome (354422224453).

The spelling of 222311111231 in words is "two hundred twenty-two billion, three hundred eleven million, one hundred eleven thousand, two hundred thirty-one".