22240132021 has 2 divisors, whose sum is σ = 22240132022. Its totient is φ = 22240132020.

The previous prime is 22240131989. The next prime is 22240132063. The reversal of 22240132021 is 12023104222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16706855025 + 5533276996 = 129255^2 + 74386^2 .

It is a cyclic number.

It is not a de Polignac number, because 22240132021 - 2⁵ = 22240131989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22240132021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22240132721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120066010 + 11120066011.

It is an arithmetic number, because the mean of its divisors is an integer number (11120066011).

Almost surely, 2^22240132021 is an apocalyptic number.

It is an amenable number.

22240132021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22240132021 is an equidigital number, since it uses as much as digits as its factorization.

22240132021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22240132021 its reverse (12023104222), we get a palindrome (34263236243).

The spelling of 22240132021 in words is "twenty-two billion, two hundred forty million, one hundred thirty-two thousand, twenty-one".