22022236343440 has 40 divisors (see below), whose sum is σ = 51849822291840. Its totient is φ = 8697389540736.

The previous prime is 22022236343407. The next prime is 22022236343491. The reversal of 22022236343440 is 4434363222022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22022236343440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742259214 + ... + 1742271853.

It is an arithmetic number, because the mean of its divisors is an integer number (1296245557296).

Almost surely, 2^{22022236343440} is an apocalyptic number.

22022236343440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022236343440 is an abundant number, since it is smaller than the sum of its proper divisors (29827585948400).

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

22022236343440 is a wasteful number, since it uses less digits than its factorization.

22022236343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484531159 (or 3484531153 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 22022236343440 its reverse (4434363222022), we get a palindrome (26456599565462).

The spelling of 22022236343440 in words is "twenty-two trillion, twenty-two billion, two hundred thirty-six million, three hundred forty-three thousand, four hundred forty".