22211233440 has 96 divisors (see below), whose sum is σ = 76325893056. Its totient is φ = 5384540160.

The previous prime is 22211233439. The next prime is 22211233477. The reversal of 22211233440 is 4433211222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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 22211233440.

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, 2098057 + ... + 2108616.

It is an arithmetic number, because the mean of its divisors is an integer number (795061386).

Almost surely, 2^22211233440 is an apocalyptic number.

22211233440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211233440 is an abundant number, since it is smaller than the sum of its proper divisors (54114659616).

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

22211233440 is a wasteful number, since it uses less digits than its factorization.

22211233440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206702 (or 4206694 counting only the distinct ones).

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

Adding to 22211233440 its reverse (4433211222), we get a palindrome (26644444662).

It can be divided in two parts, 222112 and 33440, that added together give a palindrome (255552).

The spelling of 22211233440 in words is "twenty-two billion, two hundred eleven million, two hundred thirty-three thousand, four hundred forty".