22251255252 has 12 divisors (see below), whose sum is σ = 51919595616. Its totient is φ = 7417085080.

The previous prime is 22251255209. The next prime is 22251255253. The reversal of 22251255252 is 25255215222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22251255253) 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, 927135624 + ... + 927135647.

It is an arithmetic number, because the mean of its divisors is an integer number (4326632968).

Almost surely, 2^22251255252 is an apocalyptic number.

It is an amenable number.

22251255252 is an abundant number, since it is smaller than the sum of its proper divisors (29668340364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22251255252 is a wasteful number, since it uses less digits than its factorization.

22251255252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854271278 (or 1854271276 counting only the distinct ones).

The product of its digits is 40000, while the sum is 33.

The spelling of 22251255252 in words is "twenty-two billion, two hundred fifty-one million, two hundred fifty-five thousand, two hundred fifty-two".