22211020231 has 2 divisors, whose sum is σ = 22211020232. Its totient is φ = 22211020230.

The previous prime is 22211020193. The next prime is 22211020243. The reversal of 22211020231 is 13202011222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22211020231 - 2¹⁹ = 22210495943 is a prime.

It is a super-2 number, since 2×22211020231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211020291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105510115 + 11105510116.

It is an arithmetic number, because the mean of its divisors is an integer number (11105510116).

Almost surely, 2^22211020231 is an apocalyptic number.

22211020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211020231 is an equidigital number, since it uses as much as digits as its factorization.

22211020231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22211020231 its reverse (13202011222), we get a palindrome (35413031453).

Subtracting from 22211020231 its reverse (13202011222), we obtain a palindrome (9009009009).

The spelling of 22211020231 in words is "twenty-two billion, two hundred eleven million, twenty thousand, two hundred thirty-one".