22204401320 has 16 divisors (see below), whose sum is σ = 49959903060. Its totient is φ = 8881760512.

The previous prime is 22204401293. The next prime is 22204401347. The reversal of 22204401320 is 2310440222.

It is an interprime number because it is at equal distance from previous prime (22204401293) and next prime (22204401347).

It can be written as a sum of positive squares in 2 ways, for example, as 22199212036 + 5189284 = 148994^2 + 2278^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22204401292 and 22204401301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277554977 + ... + 277555056.

Almost surely, 2^22204401320 is an apocalyptic number.

22204401320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204401320 is an abundant number, since it is smaller than the sum of its proper divisors (27755501740).

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

22204401320 is a wasteful number, since it uses less digits than its factorization.

22204401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555110044 (or 555110040 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22204401320 its reverse (2310440222), we get a palindrome (24514841542).

The spelling of 22204401320 in words is "twenty-two billion, two hundred four million, four hundred one thousand, three hundred twenty".