22113145244 has 24 divisors (see below), whose sum is σ = 39552135168. Its totient is φ = 10812901680.

The previous prime is 22113145207. The next prime is 22113145247. The reversal of 22113145244 is 44254131122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113145247) 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, 199829 + ... + 290099.

It is an arithmetic number, because the mean of its divisors is an integer number (1648005632).

Almost surely, 2^22113145244 is an apocalyptic number.

It is an amenable number.

22113145244 is a deficient number, since it is larger than the sum of its proper divisors (17438989924).

22113145244 is a wasteful number, since it uses less digits than its factorization.

22113145244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91625 (or 91623 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

Adding to 22113145244 its reverse (44254131122), we get a palindrome (66367276366).

The spelling of 22113145244 in words is "twenty-two billion, one hundred thirteen million, one hundred forty-five thousand, two hundred forty-four".