22012620032 has 72 divisors (see below), whose sum is σ = 47603746176. Its totient is φ = 10098579456.

The previous prime is 22012620029. The next prime is 22012620037. The reversal of 22012620032 is 23002621022.

It is a junction number, because it is equal to n+sod(n) for n = 22012619986 and 22012620013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012620037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535973 + ... + 575579.

Almost surely, 2^22012620032 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 22012620032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23801873088).

22012620032 is an abundant number, since it is smaller than the sum of its proper divisors (25591126144).

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

22012620032 is a wasteful number, since it uses less digits than its factorization.

22012620032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39803 (or 39789 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The spelling of 22012620032 in words is "twenty-two billion, twelve million, six hundred twenty thousand, thirty-two".