22124222551 has 2 divisors, whose sum is σ = 22124222552. Its totient is φ = 22124222550.

The previous prime is 22124222539. The next prime is 22124222567. The reversal of 22124222551 is 15522242122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22124222551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22124225551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11062111275 + 11062111276.

It is an arithmetic number, because the mean of its divisors is an integer number (11062111276).

Almost surely, 2^22124222551 is an apocalyptic number.

22124222551 is a deficient number, since it is larger than the sum of its proper divisors (1).

22124222551 is an equidigital number, since it uses as much as digits as its factorization.

22124222551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6400, while the sum is 28.

Adding to 22124222551 its reverse (15522242122), we get a palindrome (37646464673).

The spelling of 22124222551 in words is "twenty-two billion, one hundred twenty-four million, two hundred twenty-two thousand, five hundred fifty-one".