22604422424251 has 2 divisors, whose sum is σ = 22604422424252. Its totient is φ = 22604422424250.

The previous prime is 22604422424249. The next prime is 22604422424399. The reversal of 22604422424251 is 15242422440622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22604422424251 - 2¹ = 22604422424249 is a prime.

It is a super-2 number, since 2×22604422424251² (a number of 28 digits) contains 22 as substring.

Together with 22604422424249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22604422425251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11302211212125 + 11302211212126.

It is an arithmetic number, because the mean of its divisors is an integer number (11302211212126).

Almost surely, 2^{22604422424251} is an apocalyptic number.

22604422424251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22604422424251 is an equidigital number, since it uses as much as digits as its factorization.

22604422424251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 22604422424251 its reverse (15242422440622), we get a palindrome (37846844864873).

The spelling of 22604422424251 in words is "twenty-two trillion, six hundred four billion, four hundred twenty-two million, four hundred twenty-four thousand, two hundred fifty-one".