22001130322440 has 64 divisors (see below), whose sum is σ = 66683838332160. Its totient is φ = 5806483875840.

The previous prime is 22001130322411. The next prime is 22001130322453. The reversal of 22001130322440 is 4422303110022.

It is a happy number.

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 22001130322440.

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, 945054096 + ... + 945077375.

It is an arithmetic number, because the mean of its divisors is an integer number (1041934973940).

Almost surely, 2^{22001130322440} is an apocalyptic number.

22001130322440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001130322440 is an abundant number, since it is smaller than the sum of its proper divisors (44682708009720).

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

22001130322440 is a wasteful number, since it uses less digits than its factorization.

22001130322440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890131582 (or 1890131578 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22001130322440 its reverse (4422303110022), we get a palindrome (26423433432462).

The spelling of 22001130322440 in words is "twenty-two trillion, one billion, one hundred thirty million, three hundred twenty-two thousand, four hundred forty".