220222111231 has 2 divisors, whose sum is σ = 220222111232. Its totient is φ = 220222111230.

The previous prime is 220222111217. The next prime is 220222111237. The reversal of 220222111231 is 132111222022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220222111231 is a prime.

It is a super-2 number, since 2×220222111231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220222111199 and 220222111208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220222111237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111055615 + 110111055616.

It is an arithmetic number, because the mean of its divisors is an integer number (110111055616).

Almost surely, 2^220222111231 is an apocalyptic number.

220222111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222111231 is an equidigital number, since it uses as much as digits as its factorization.

220222111231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 220222111231 its reverse (132111222022), we get a palindrome (352333333253).

The spelling of 220222111231 in words is "two hundred twenty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred thirty-one".