22131110993 has 8 divisors (see below), whose sum is σ = 22220413248. Its totient is φ = 22041848304.

The previous prime is 22131110959. The next prime is 22131111029. The reversal of 22131110993 is 39901113122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22131110993 - 2³² = 17836143697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22131110933) 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, 1683755 + ... + 1696847.

It is an arithmetic number, because the mean of its divisors is an integer number (2777551656).

Almost surely, 2^22131110993 is an apocalyptic number.

It is an amenable number.

22131110993 is a deficient number, since it is larger than the sum of its proper divisors (89302255).

22131110993 is a wasteful number, since it uses less digits than its factorization.

22131110993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19783.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 22131110993 in words is "twenty-two billion, one hundred thirty-one million, one hundred ten thousand, nine hundred ninety-three".