22147311424 has 56 divisors (see below), whose sum is σ = 51295645440. Its totient is φ = 9289744896.

The previous prime is 22147311421. The next prime is 22147311443. The reversal of 22147311424 is 42411374122.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147311421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504859 + ... + 546970.

Almost surely, 2^22147311424 is an apocalyptic number.

It is an amenable number.

22147311424 is an abundant number, since it is smaller than the sum of its proper divisors (29148334016).

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

22147311424 is a wasteful number, since it uses less digits than its factorization.

22147311424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051895 (or 1051885 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

Adding to 22147311424 its reverse (42411374122), we get a palindrome (64558685546).

The spelling of 22147311424 in words is "twenty-two billion, one hundred forty-seven million, three hundred eleven thousand, four hundred twenty-four".