22133123442 has 24 divisors (see below), whose sum is σ = 48670851216. Its totient is φ = 7267592376.

The previous prime is 22133123407. The next prime is 22133123449. The reversal of 22133123442 is 24432133122.

22133123442 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 312 + 344 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (22133123449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9175048 + ... + 9177459.

It is an arithmetic number, because the mean of its divisors is an integer number (2027952134).

Almost surely, 2^22133123442 is an apocalyptic number.

22133123442 is an abundant number, since it is smaller than the sum of its proper divisors (26537727774).

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

22133123442 is a wasteful number, since it uses less digits than its factorization.

22133123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18352582 (or 18352579 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 22133123442 its reverse (24432133122), we get a palindrome (46565256564).

The spelling of 22133123442 in words is "twenty-two billion, one hundred thirty-three million, one hundred twenty-three thousand, four hundred forty-two".