22124213232 has 80 divisors (see below), whose sum is σ = 62424421248. Its totient is φ = 6696311040.

The previous prime is 22124213231. The next prime is 22124213239. The reversal of 22124213232 is 23231242122.

It is a super-2 number, since 2×22124213232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124213231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425823 + ... + 474945.

Almost surely, 2^22124213232 is an apocalyptic number.

22124213232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22124213232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31212210624).

22124213232 is an abundant number, since it is smaller than the sum of its proper divisors (40300208016).

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

22124213232 is a wasteful number, since it uses less digits than its factorization.

22124213232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49998 (or 49992 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

Adding to 22124213232 its reverse (23231242122), we get a palindrome (45355455354).

The spelling of 22124213232 in words is "twenty-two billion, one hundred twenty-four million, two hundred thirteen thousand, two hundred thirty-two".