222312331121 has 4 divisors (see below), whose sum is σ = 231978084672. Its totient is φ = 212646577572.

The previous prime is 222312331069. The next prime is 222312331123. The reversal of 222312331121 is 121133213222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222312331121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9665753527 = 222312331121 / (2 + 2 + 2 + 3 + 1 + 2 + 3 + 3 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222312331123) 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, 4832876741 + ... + 4832876786.

It is an arithmetic number, because the mean of its divisors is an integer number (57994521168).

Almost surely, 2^222312331121 is an apocalyptic number.

It is an amenable number.

222312331121 is a deficient number, since it is larger than the sum of its proper divisors (9665753551).

222312331121 is an equidigital number, since it uses as much as digits as its factorization.

222312331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665753550.

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

Adding to 222312331121 its reverse (121133213222), we get a palindrome (343445544343).

The spelling of 222312331121 in words is "two hundred twenty-two billion, three hundred twelve million, three hundred thirty-one thousand, one hundred twenty-one".