22422425251 has 4 divisors (see below), whose sum is σ = 22422763432. Its totient is φ = 22422087072.

The previous prime is 22422425243. The next prime is 22422425279. The reversal of 22422425251 is 15252422422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22422425251 - 2³ = 22422425243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22422425651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33270 + ... + 214363.

It is an arithmetic number, because the mean of its divisors is an integer number (5605690858).

Almost surely, 2^22422425251 is an apocalyptic number.

22422425251 is a deficient number, since it is larger than the sum of its proper divisors (338181).

22422425251 is an equidigital number, since it uses as much as digits as its factorization.

22422425251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338180.

The product of its digits is 25600, while the sum is 31.

Adding to 22422425251 its reverse (15252422422), we get a palindrome (37674847673).

The spelling of 22422425251 in words is "twenty-two billion, four hundred twenty-two million, four hundred twenty-five thousand, two hundred fifty-one".