222232121231 has 2 divisors, whose sum is σ = 222232121232. Its totient is φ = 222232121230.

The previous prime is 222232121203. The next prime is 222232121249. The reversal of 222232121231 is 132121232222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222232121231 - 2¹⁰ = 222232120207 is a prime.

It is a super-2 number, since 2×222232121231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222232121197 and 222232121206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222232141231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111116060615 + 111116060616.

It is an arithmetic number, because the mean of its divisors is an integer number (111116060616).

Almost surely, 2^222232121231 is an apocalyptic number.

222232121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

222232121231 is an equidigital number, since it uses as much as digits as its factorization.

222232121231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

Adding to 222232121231 its reverse (132121232222), we get a palindrome (354353353453).

The spelling of 222232121231 in words is "two hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty-one".