221022222110231 has 2 divisors, whose sum is σ = 221022222110232. Its totient is φ = 221022222110230.

The previous prime is 221022222110197. The next prime is 221022222110237. The reversal of 221022222110231 is 132011222220122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221022222110231 is a prime.

It is a super-2 number, since 2×221022222110231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221022222110197 and 221022222110206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221022222110237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511111055115 + 110511111055116.

It is an arithmetic number, because the mean of its divisors is an integer number (110511111055116).

Almost surely, 2^{221022222110231} is an apocalyptic number.

221022222110231 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022222110231 is an equidigital number, since it uses as much as digits as its factorization.

221022222110231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221022222110231 its reverse (132011222220122), we get a palindrome (353033444330353).

The spelling of 221022222110231 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-two million, one hundred ten thousand, two hundred thirty-one".