22654529021 has 2 divisors, whose sum is σ = 22654529022. Its totient is φ = 22654529020.

The previous prime is 22654529017. The next prime is 22654529041. The reversal of 22654529021 is 12092545622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21190624900 + 1463904121 = 145570^2 + 38261^2 .

It is a cyclic number.

It is not a de Polignac number, because 22654529021 - 2² = 22654529017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22654529011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11327264510 + 11327264511.

It is an arithmetic number, because the mean of its divisors is an integer number (11327264511).

Almost surely, 2^22654529021 is an apocalyptic number.

It is an amenable number.

22654529021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22654529021 is an equidigital number, since it uses as much as digits as its factorization.

22654529021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 22654529021 in words is "twenty-two billion, six hundred fifty-four million, five hundred twenty-nine thousand, twenty-one".