22440323112 has 32 divisors (see below), whose sum is σ = 56117215680. Its totient is φ = 7477920000.

The previous prime is 22440323111. The next prime is 22440323131. The reversal of 22440323112 is 21132304422.

It is a happy number.

It is a super-2 number, since 2×22440323112² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22440323111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51889 + ... + 218112.

It is an arithmetic number, because the mean of its divisors is an integer number (1753662990).

Almost surely, 2^22440323112 is an apocalyptic number.

It is an amenable number.

22440323112 is an abundant number, since it is smaller than the sum of its proper divisors (33676892568).

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

22440323112 is a wasteful number, since it uses less digits than its factorization.

22440323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273473 (or 273469 counting only the distinct ones).

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

Adding to 22440323112 its reverse (21132304422), we get a palindrome (43572627534).

The spelling of 22440323112 in words is "twenty-two billion, four hundred forty million, three hundred twenty-three thousand, one hundred twelve".