22000000032 has 96 divisors (see below), whose sum is σ = 64207080000. Its totient is φ = 7328715264.

The previous prime is 22000000031. The next prime is 22000000037. The reversal of 22000000032 is 23000000022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 21999999960 and 22000000023.

It is not an unprimeable number, because it can be changed into a prime (22000000031) 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, 1536844 + ... + 1551092.

It is an arithmetic number, because the mean of its divisors is an integer number (668823750).

Almost surely, 2^22000000032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000000032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32103540000).

22000000032 is an abundant number, since it is smaller than the sum of its proper divisors (42207079968).

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

22000000032 is a wasteful number, since it uses less digits than its factorization.

22000000032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055 (or 16041 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 22000000032 its reverse (23000000022), we get a palindrome (45000000054).

The spelling of 22000000032 in words is "twenty-two billion, thirty-two", and thus it is an aban number and an uban number.