22445140222452 has 24 divisors (see below), whose sum is σ = 52377528513856. Its totient is φ = 7480922741568.

The previous prime is 22445140222447. The next prime is 22445140222487. The reversal of 22445140222452 is 25422204154422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22445140222452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98714953 + ... + 98942064.

Almost surely, 2^{22445140222452} is an apocalyptic number.

It is an amenable number.

22445140222452 is an abundant number, since it is smaller than the sum of its proper divisors (29932388291404).

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

22445140222452 is a wasteful number, since it uses less digits than its factorization.

22445140222452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197666487 (or 197666485 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 39.

Adding to 22445140222452 its reverse (25422204154422), we get a palindrome (47867344376874).

The spelling of 22445140222452 in words is "twenty-two trillion, four hundred forty-five billion, one hundred forty million, two hundred twenty-two thousand, four hundred fifty-two".