22852224821 has 2 divisors, whose sum is σ = 22852224822. Its totient is φ = 22852224820.

The previous prime is 22852224781. The next prime is 22852224841. The reversal of 22852224821 is 12842225822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20343316900 + 2508907921 = 142630^2 + 50089^2 .

It is a cyclic number.

It is not a de Polignac number, because 22852224821 - 2⁶ = 22852224757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22852224841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11426112410 + 11426112411.

It is an arithmetic number, because the mean of its divisors is an integer number (11426112411).

Almost surely, 2^22852224821 is an apocalyptic number.

It is an amenable number.

22852224821 is a deficient number, since it is larger than the sum of its proper divisors (1).

22852224821 is an equidigital number, since it uses as much as digits as its factorization.

22852224821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81920, while the sum is 38.

The spelling of 22852224821 in words is "twenty-two billion, eight hundred fifty-two million, two hundred twenty-four thousand, eight hundred twenty-one".