22422422251 has 2 divisors, whose sum is σ = 22422422252. Its totient is φ = 22422422250.

The previous prime is 22422422219. The next prime is 22422422261. The reversal of 22422422251 is 15222422422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22422422251 - 2⁵ = 22422422219 is a prime.

It is not a weakly prime, because it can be changed into another prime (22422422201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211211125 + 11211211126.

It is an arithmetic number, because the mean of its divisors is an integer number (11211211126).

Almost surely, 2^22422422251 is an apocalyptic number.

22422422251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22422422251 is an equidigital number, since it uses as much as digits as its factorization.

22422422251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10240, while the sum is 28.

Adding to 22422422251 its reverse (15222422422), we get a palindrome (37644844673).

The spelling of 22422422251 in words is "twenty-two billion, four hundred twenty-two million, four hundred twenty-two thousand, two hundred fifty-one".