22255242252 has 12 divisors (see below), whose sum is σ = 51928898616. Its totient is φ = 7418414080.

The previous prime is 22255242223. The next prime is 22255242253. The reversal of 22255242252 is 25224255222.

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

It is not an unprimeable number, because it can be changed into a prime (22255242253) 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, 927301749 + ... + 927301772.

It is an arithmetic number, because the mean of its divisors is an integer number (4327408218).

Almost surely, 2^22255242252 is an apocalyptic number.

It is an amenable number.

22255242252 is an abundant number, since it is smaller than the sum of its proper divisors (29673656364).

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

22255242252 is a wasteful number, since it uses less digits than its factorization.

22255242252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854603528 (or 1854603526 counting only the distinct ones).

The product of its digits is 64000, while the sum is 33.

Adding to 22255242252 its reverse (25224255222), we get a palindrome (47479497474).

The spelling of 22255242252 in words is "twenty-two billion, two hundred fifty-five million, two hundred forty-two thousand, two hundred fifty-two".