22120320032 has 24 divisors (see below), whose sum is σ = 46111109436. Its totient is φ = 10409562112.

The previous prime is 22120320023. The next prime is 22120320071. The reversal of 22120320032 is 23002302122.

It can be written as a sum of positive squares in 2 ways, for example, as 20887186576 + 1233133456 = 144524^2 + 35116^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20330633 + ... + 20331720.

Almost surely, 2^22120320032 is an apocalyptic number.

It is an amenable number.

22120320032 is an abundant number, since it is smaller than the sum of its proper divisors (23990789404).

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

22120320032 is a wasteful number, since it uses less digits than its factorization.

22120320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40662380 (or 40662372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22120320032 its reverse (23002302122), we get a palindrome (45122622154).

The spelling of 22120320032 in words is "twenty-two billion, one hundred twenty million, three hundred twenty thousand, thirty-two".