22032423200 has 72 divisors (see below), whose sum is σ = 53978615460. Its totient is φ = 8781516800.

The previous prime is 22032423121. The next prime is 22032423209. The reversal of 22032423200 is 232423022.

It can be written as a sum of positive squares in 6 ways, for example, as 7190361616 + 14842061584 = 84796^2 + 121828^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (22032423209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175796 + ... + 273804.

Almost surely, 2^22032423200 is an apocalyptic number.

22032423200 is a gapful number since it is divisible by the number (20) 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 22032423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26989307730).

22032423200 is an abundant number, since it is smaller than the sum of its proper divisors (31946192260).

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

22032423200 is a wasteful number, since it uses less digits than its factorization.

22032423200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98310 (or 98297 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22032423200 its reverse (232423022), we get a palindrome (22264846222).

The spelling of 22032423200 in words is "twenty-two billion, thirty-two million, four hundred twenty-three thousand, two hundred".