22115311315444 has 24 divisors (see below), whose sum is σ = 39252485563200. Its totient is φ = 10900359845760.

The previous prime is 22115311315429. The next prime is 22115311315463. The reversal of 22115311315444 is 44451311351122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3553749 + ... + 7540540.

It is an arithmetic number, because the mean of its divisors is an integer number (1635520231800).

Almost surely, 2^{22115311315444} is an apocalyptic number.

It is an amenable number.

22115311315444 is a deficient number, since it is larger than the sum of its proper divisors (17137174247756).

22115311315444 is a wasteful number, since it uses less digits than its factorization.

22115311315444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101383 (or 11101381 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

Adding to 22115311315444 its reverse (44451311351122), we get a palindrome (66566622666566).

The spelling of 22115311315444 in words is "twenty-two trillion, one hundred fifteen billion, three hundred eleven million, three hundred fifteen thousand, four hundred forty-four".