22421354533 has 2 divisors, whose sum is σ = 22421354534. Its totient is φ = 22421354532.

The previous prime is 22421354521. The next prime is 22421354597. The reversal of 22421354533 is 33545312422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21344333409 + 1077021124 = 146097^2 + 32818^2 .

It is a cyclic number.

It is not a de Polignac number, because 22421354533 - 2³³ = 13831419941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22421354513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11210677266 + 11210677267.

It is an arithmetic number, because the mean of its divisors is an integer number (11210677267).

Almost surely, 2^22421354533 is an apocalyptic number.

It is an amenable number.

22421354533 is a deficient number, since it is larger than the sum of its proper divisors (1).

22421354533 is an equidigital number, since it uses as much as digits as its factorization.

22421354533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 34.

Adding to 22421354533 its reverse (33545312422), we get a palindrome (55966666955).

The spelling of 22421354533 in words is "twenty-two billion, four hundred twenty-one million, three hundred fifty-four thousand, five hundred thirty-three".