22202422440 has 64 divisors (see below), whose sum is σ = 72662477760. Its totient is φ = 5382405120.

The previous prime is 22202422373. The next prime is 22202422481. The reversal of 22202422440 is 4422420222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22202422440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8408689 + ... + 8411328.

It is an arithmetic number, because the mean of its divisors is an integer number (1135351215).

Almost surely, 2^22202422440 is an apocalyptic number.

22202422440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202422440 is an abundant number, since it is smaller than the sum of its proper divisors (50460055320).

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

22202422440 is a wasteful number, since it uses less digits than its factorization.

22202422440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16820042 (or 16820038 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22202422440 its reverse (4422420222), we get a palindrome (26624842662).

The spelling of 22202422440 in words is "twenty-two billion, two hundred two million, four hundred twenty-two thousand, four hundred forty".