22142042436 has 24 divisors (see below), whose sum is σ = 52138757440. Its totient is φ = 7312967712.

The previous prime is 22142042383. The next prime is 22142042437. The reversal of 22142042436 is 63424024122.

It is not an unprimeable number, because it can be changed into a prime (22142042437) 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, 8462776 + ... + 8465391.

Almost surely, 2^22142042436 is an apocalyptic number.

It is an amenable number.

22142042436 is an abundant number, since it is smaller than the sum of its proper divisors (29996715004).

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

22142042436 is a wasteful number, since it uses less digits than its factorization.

22142042436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16928283 (or 16928281 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22142042436 its reverse (63424024122), we get a palindrome (85566066558).

The spelling of 22142042436 in words is "twenty-two billion, one hundred forty-two million, forty-two thousand, four hundred thirty-six".