22022252512 has 48 divisors (see below), whose sum is σ = 47388357072. Its totient is φ = 10012400640.

The previous prime is 22022252509. The next prime is 22022252519. The reversal of 22022252512 is 21525222022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022252519) 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, 367189 + ... + 422932.

It is an arithmetic number, because the mean of its divisors is an integer number (987257439).

Almost surely, 2^22022252512 is an apocalyptic number.

It is an amenable number.

22022252512 is an abundant number, since it is smaller than the sum of its proper divisors (25366104560).

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

22022252512 is a wasteful number, since it uses less digits than its factorization.

22022252512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790211 (or 790203 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 22022252512 its reverse (21525222022), we get a palindrome (43547474534).

The spelling of 22022252512 in words is "twenty-two billion, twenty-two million, two hundred fifty-two thousand, five hundred twelve".