22132220004 has 60 divisors (see below), whose sum is σ = 59269201068. Its totient is φ = 7197465600.

The previous prime is 22132219997. The next prime is 22132220017. The reversal of 22132220004 is 40002223122.

It can be written as a sum of positive squares in 2 ways, for example, as 1214383104 + 20917836900 = 34848^2 + 144630^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 819757 + ... + 846324.

Almost surely, 2^22132220004 is an apocalyptic number.

It is an amenable number.

22132220004 is an abundant number, since it is smaller than the sum of its proper divisors (37136981064).

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

22132220004 is a wasteful number, since it uses less digits than its factorization.

22132220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666138 (or 1666127 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22132220004 its reverse (40002223122), we get a palindrome (62134443126).

The spelling of 22132220004 in words is "twenty-two billion, one hundred thirty-two million, two hundred twenty thousand, four".