22244415451 has 2 divisors, whose sum is σ = 22244415452. Its totient is φ = 22244415450.

The previous prime is 22244415449. The next prime is 22244415491. The reversal of 22244415451 is 15451444222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22244415451 - 2¹ = 22244415449 is a prime.

Together with 22244415449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22244415421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122207725 + 11122207726.

It is an arithmetic number, because the mean of its divisors is an integer number (11122207726).

Almost surely, 2^22244415451 is an apocalyptic number.

22244415451 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244415451 is an equidigital number, since it uses as much as digits as its factorization.

22244415451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51200, while the sum is 34.

Adding to 22244415451 its reverse (15451444222), we get a palindrome (37695859673).

The spelling of 22244415451 in words is "twenty-two billion, two hundred forty-four million, four hundred fifteen thousand, four hundred fifty-one".