22133540220 has 144 divisors (see below), whose sum is σ = 68783769600. Its totient is φ = 5313432960.

The previous prime is 22133540183. The next prime is 22133540279. The reversal of 22133540220 is 2204533122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 732981 + ... + 762579.

Almost surely, 2^22133540220 is an apocalyptic number.

22133540220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22133540220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34391884800).

22133540220 is an abundant number, since it is smaller than the sum of its proper divisors (46650229380).

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

22133540220 is a wasteful number, since it uses less digits than its factorization.

22133540220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29736 (or 29723 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The spelling of 22133540220 in words is "twenty-two billion, one hundred thirty-three million, five hundred forty thousand, two hundred twenty".