22130334440 has 64 divisors (see below), whose sum is σ = 50774169600. Its totient is φ = 8678022912.

The previous prime is 22130334407. The next prime is 22130334451. The reversal of 22130334440 is 4443303122.

It is a super-2 number, since 2×22130334440² (a number of 21 digits) contains 22 as substring.

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, 3140441 + ... + 3147479.

It is an arithmetic number, because the mean of its divisors is an integer number (793346400).

Almost surely, 2^22130334440 is an apocalyptic number.

22130334440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22130334440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25387084800).

22130334440 is an abundant number, since it is smaller than the sum of its proper divisors (28643835160).

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

22130334440 is a wasteful number, since it uses less digits than its factorization.

22130334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 22130334440 its reverse (4443303122), we get a palindrome (26573637562).

The spelling of 22130334440 in words is "twenty-two billion, one hundred thirty million, three hundred thirty-four thousand, four hundred forty".