22214781923 has 4 divisors (see below), whose sum is σ = 22215082680. Its totient is φ = 22214481168.

The previous prime is 22214781917. The next prime is 22214781971. The reversal of 22214781923 is 32918741222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22214781923 - 2¹⁰ = 22214780899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22214781973) 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, 45236 + ... + 215582.

It is an arithmetic number, because the mean of its divisors is an integer number (5553770670).

Almost surely, 2^22214781923 is an apocalyptic number.

22214781923 is a deficient number, since it is larger than the sum of its proper divisors (300757).

22214781923 is a wasteful number, since it uses less digits than its factorization.

22214781923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300756.

The product of its digits is 96768, while the sum is 41.

The spelling of 22214781923 in words is "twenty-two billion, two hundred fourteen million, seven hundred eighty-one thousand, nine hundred twenty-three".