22240314220021 has 2 divisors, whose sum is σ = 22240314220022. Its totient is φ = 22240314220020.

The previous prime is 22240314219973. The next prime is 22240314220027. The reversal of 22240314220021 is 12002241304222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16178205461796 + 6062108758225 = 4022214^2 + 2462135^2 .

It is a cyclic number.

It is not a de Polignac number, because 22240314220021 - 2⁹ = 22240314219509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22240314220027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120157110010 + 11120157110011.

It is an arithmetic number, because the mean of its divisors is an integer number (11120157110011).

Almost surely, 2^{22240314220021} is an apocalyptic number.

It is an amenable number.

22240314220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22240314220021 is an equidigital number, since it uses as much as digits as its factorization.

22240314220021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22240314220021 its reverse (12002241304222), we get a palindrome (34242555524243).

The spelling of 22240314220021 in words is "twenty-two trillion, two hundred forty billion, three hundred fourteen million, two hundred twenty thousand, twenty-one".