22120310032 has 20 divisors (see below), whose sum is σ = 42863877196. Its totient is φ = 11058664320.

The previous prime is 22120309993. The next prime is 22120310033. The reversal of 22120310032 is 23001302122.

It can be written as a sum of positive squares in 2 ways, for example, as 5299257616 + 16821052416 = 72796^2 + 129696^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 22120309988 and 22120310015.

It is not an unprimeable number, because it can be changed into a prime (22120310033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34558 + ... + 213154.

Almost surely, 2^22120310032 is an apocalyptic number.

It is an amenable number.

22120310032 is a deficient number, since it is larger than the sum of its proper divisors (20743567164).

22120310032 is a wasteful number, since it uses less digits than its factorization.

22120310032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186346 (or 186340 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22120310032 its reverse (23001302122), we get a palindrome (45121612154).

The spelling of 22120310032 in words is "twenty-two billion, one hundred twenty million, three hundred ten thousand, thirty-two".