22525445012 has 12 divisors (see below), whose sum is σ = 45050890080. Its totient is φ = 9653762136.

The previous prime is 22525445011. The next prime is 22525445017. The reversal of 22525445012 is 21054452522.

22525445012 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22525445012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525445011) 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, 402240062 + ... + 402240117.

It is an arithmetic number, because the mean of its divisors is an integer number (3754240840).

Almost surely, 2^22525445012 is an apocalyptic number.

It is an amenable number.

22525445012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22525445012 is a wasteful number, since it uses less digits than its factorization.

22525445012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804480190 (or 804480188 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 22525445012 its reverse (21054452522), we get a palindrome (43579897534).

The spelling of 22525445012 in words is "twenty-two billion, five hundred twenty-five million, four hundred forty-five thousand, twelve".