22142340512 has 24 divisors (see below), whose sum is σ = 43870403556. Its totient is φ = 11000650752.

The previous prime is 22142340499. The next prime is 22142340547. The reversal of 22142340512 is 21504324122.

It can be written as a sum of positive squares in 2 ways, for example, as 20668087696 + 1474252816 = 143764^2 + 38396^2 .

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, 2198633 + ... + 2208680.

Almost surely, 2^22142340512 is an apocalyptic number.

It is an amenable number.

22142340512 is a deficient number, since it is larger than the sum of its proper divisors (21728063044).

22142340512 is a wasteful number, since it uses less digits than its factorization.

22142340512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407480 (or 4407472 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 22142340512 its reverse (21504324122), we get a palindrome (43646664634).

The spelling of 22142340512 in words is "twenty-two billion, one hundred forty-two million, three hundred forty thousand, five hundred twelve".