22142340244 has 12 divisors (see below), whose sum is σ = 38753908704. Its totient is φ = 11069794904.

The previous prime is 22142340221. The next prime is 22142340257. The reversal of 22142340244 is 44204324122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307144 + ... + 372319.

It is an arithmetic number, because the mean of its divisors is an integer number (3229492392).

Almost surely, 2^22142340244 is an apocalyptic number.

It is an amenable number.

22142340244 is a deficient number, since it is larger than the sum of its proper divisors (16611568460).

22142340244 is a wasteful number, since it uses less digits than its factorization.

22142340244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687614 (or 687612 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22142340244 its reverse (44204324122), we get a palindrome (66346664366).

The spelling of 22142340244 in words is "twenty-two billion, one hundred forty-two million, three hundred forty thousand, two hundred forty-four".