22022402240 has 28 divisors (see below), whose sum is σ = 52440846096. Its totient is φ = 8808960768.

The previous prime is 22022402231. The next prime is 22022402261. The reversal of 22022402240 is 4220422022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34409684 + ... + 34410323.

Almost surely, 2^22022402240 is an apocalyptic number.

22022402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022402240 is an abundant number, since it is smaller than the sum of its proper divisors (30418443856).

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

22022402240 is an equidigital number, since it uses as much as digits as its factorization.

22022402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68820024 (or 68820014 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22022402240 its reverse (4220422022), we get a palindrome (26242824262).

The spelling of 22022402240 in words is "twenty-two billion, twenty-two million, four hundred two thousand, two hundred forty".