22032415220 has 12 divisors (see below), whose sum is σ = 46268072004. Its totient is φ = 8812966080.

The previous prime is 22032415189. The next prime is 22032415241. The reversal of 22032415220 is 2251423022.

It can be written as a sum of positive squares in 2 ways, for example, as 3871079524 + 18161335696 = 62218^2 + 134764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550810361 + ... + 550810400.

It is an arithmetic number, because the mean of its divisors is an integer number (3855672667).

Almost surely, 2^22032415220 is an apocalyptic number.

22032415220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22032415220 is an abundant number, since it is smaller than the sum of its proper divisors (24235656784).

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

22032415220 is a wasteful number, since it uses less digits than its factorization.

22032415220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101620770 (or 1101620768 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 22032415220 its reverse (2251423022), we get a palindrome (24283838242).

The spelling of 22032415220 in words is "twenty-two billion, thirty-two million, four hundred fifteen thousand, two hundred twenty".