22140340042 has 8 divisors (see below), whose sum is σ = 33212998656. Its totient is φ = 11069340492.

The previous prime is 22140340037. The next prime is 22140340049. The reversal of 22140340042 is 24004304122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22140339995 and 22140340022.

It is not an unprimeable number, because it can be changed into a prime (22140340049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380848 + ... + 435115.

It is an arithmetic number, because the mean of its divisors is an integer number (4151624832).

Almost surely, 2^22140340042 is an apocalyptic number.

22140340042 is a deficient number, since it is larger than the sum of its proper divisors (11072658614).

22140340042 is a wasteful number, since it uses less digits than its factorization.

22140340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829532.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22140340042 its reverse (24004304122), we get a palindrome (46144644164).

The spelling of 22140340042 in words is "twenty-two billion, one hundred forty million, three hundred forty thousand, forty-two".