22221011012231 has 2 divisors, whose sum is σ = 22221011012232. Its totient is φ = 22221011012230.

The previous prime is 22221011012209. The next prime is 22221011012243. The reversal of 22221011012231 is 13221011012222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22221011012231 - 2¹⁰ = 22221011011207 is a prime.

It is a super-2 number, since 2×22221011012231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221011012251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110505506115 + 11110505506116.

It is an arithmetic number, because the mean of its divisors is an integer number (11110505506116).

Almost surely, 2^{22221011012231} is an apocalyptic number.

22221011012231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221011012231 is an equidigital number, since it uses as much as digits as its factorization.

22221011012231 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 22221011012231 its reverse (13221011012222), we get a palindrome (35442022024453).

Subtracting from 22221011012231 its reverse (13221011012222), we obtain a palindrome (9000000000009).

The spelling of 22221011012231 in words is "twenty-two trillion, two hundred twenty-one billion, eleven million, twelve thousand, two hundred thirty-one".