1020022111231 has 2 divisors, whose sum is σ = 1020022111232. Its totient is φ = 1020022111230.

The previous prime is 1020022111193. The next prime is 1020022111247. The reversal of 1020022111231 is 1321112200201.

It is an a-pointer prime, because the next prime (1020022111247) can be obtained adding 1020022111231 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020022111231 - 2²⁷ = 1019887893503 is a prime.

It is a super-2 number, since 2×1020022111231² (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 (1020022111331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011055615 + 510011055616.

It is an arithmetic number, because the mean of its divisors is an integer number (510011055616).

Almost surely, 2^{1020022111231} is an apocalyptic number.

1020022111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022111231 is an equidigital number, since it uses as much as digits as its factorization.

1020022111231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1020022111231 its reverse (1321112200201), we get a palindrome (2341134311432).

The spelling of 1020022111231 in words is "one trillion, twenty billion, twenty-two million, one hundred eleven thousand, two hundred thirty-one".