22000012032 has 36 divisors (see below), whose sum is σ = 58552117400. Its totient is φ = 7333337088.

The previous prime is 22000012031. The next prime is 22000012043. The reversal of 22000012032 is 23021000022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22000011999 and 22000012017.

It is not an unprimeable number, because it can be changed into a prime (22000012031) 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, 14322157 + ... + 14323692.

Almost surely, 2^22000012032 is an apocalyptic number.

It is an amenable number.

22000012032 is an abundant number, since it is smaller than the sum of its proper divisors (36552105368).

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

22000012032 is an equidigital number, since it uses as much as digits as its factorization.

22000012032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28645868 (or 28645854 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22000012032 its reverse (23021000022), we get a palindrome (45021012054).

The spelling of 22000012032 in words is "twenty-two billion, twelve thousand, thirty-two".