22124452520 has 32 divisors (see below), whose sum is σ = 49784785920. Its totient is φ = 8848933440.

The previous prime is 22124452499. The next prime is 22124452529. The reversal of 22124452520 is 2525442122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22124452529) 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, 552785 + ... + 591455.

It is an arithmetic number, because the mean of its divisors is an integer number (1555774560).

Almost surely, 2^22124452520 is an apocalyptic number.

22124452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22124452520 is an abundant number, since it is smaller than the sum of its proper divisors (27660333400).

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

22124452520 is a wasteful number, since it uses less digits than its factorization.

22124452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52985 (or 52981 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 22124452520 its reverse (2525442122), we get a palindrome (24649894642).

The spelling of 22124452520 in words is "twenty-two billion, one hundred twenty-four million, four hundred fifty-two thousand, five hundred twenty".