22201304240 has 40 divisors (see below), whose sum is σ = 51624247920. Its totient is φ = 8879452416.

The previous prime is 22201304221. The next prime is 22201304261. The reversal of 22201304240 is 4240310222.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225166 + ... + 1243154.

It is an arithmetic number, because the mean of its divisors is an integer number (1290606198).

Almost surely, 2^22201304240 is an apocalyptic number.

22201304240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201304240 is an abundant number, since it is smaller than the sum of its proper divisors (29422943680).

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

22201304240 is a wasteful number, since it uses less digits than its factorization.

22201304240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33429 (or 33423 counting only the distinct ones).

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

Adding to 22201304240 its reverse (4240310222), we get a palindrome (26441614462).

The spelling of 22201304240 in words is "twenty-two billion, two hundred one million, three hundred four thousand, two hundred forty".