1222022111231 has 2 divisors, whose sum is σ = 1222022111232. Its totient is φ = 1222022111230.

The previous prime is 1222022111111. The next prime is 1222022111249. The reversal of 1222022111231 is 1321112202221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222022111231 - 2¹⁴ = 1222022094847 is a prime.

It is a super-2 number, since 2×1222022111231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222022117231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611011055615 + 611011055616.

It is an arithmetic number, because the mean of its divisors is an integer number (611011055616).

Almost surely, 2^{1222022111231} is an apocalyptic number.

1222022111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222022111231 is an equidigital number, since it uses as much as digits as its factorization.

1222022111231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1222022111231 its reverse (1321112202221), we get a palindrome (2543134313452).

The spelling of 1222022111231 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred eleven thousand, two hundred thirty-one".