22124117500 has 30 divisors (see below), whose sum is σ = 48381025616. Its totient is φ = 8849646000.

The previous prime is 22124117459. The next prime is 22124117501. The reversal of 22124117500 is 571142122.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124117501) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4422324 + ... + 4427323.

Almost surely, 2^22124117500 is an apocalyptic number.

22124117500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22124117500 is an abundant number, since it is smaller than the sum of its proper divisors (26256908116).

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

22124117500 is an equidigital number, since it uses as much as digits as its factorization.

22124117500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8849671 (or 8849654 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 22124117500 its reverse (571142122), we get a palindrome (22695259622).

The spelling of 22124117500 in words is "twenty-two billion, one hundred twenty-four million, one hundred seventeen thousand, five hundred".