22225509236 has 24 divisors (see below), whose sum is σ = 46790546880. Its totient is φ = 9023890752.

The previous prime is 22225509227. The next prime is 22225509239. The reversal of 22225509236 is 63290552222.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 22225509236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225509239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20888105 + ... + 20889168.

It is an arithmetic number, because the mean of its divisors is an integer number (1949606120).

Almost surely, 2^22225509236 is an apocalyptic number.

It is an amenable number.

22225509236 is an abundant number, since it is smaller than the sum of its proper divisors (24565037644).

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

22225509236 is a wasteful number, since it uses less digits than its factorization.

22225509236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41777303 (or 41777301 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 22225509236 in words is "twenty-two billion, two hundred twenty-five million, five hundred nine thousand, two hundred thirty-six".