22123320201 has 24 divisors (see below), whose sum is σ = 34246530240. Its totient is φ = 13726332576.

The previous prime is 22123320181. The next prime is 22123320223. The reversal of 22123320201 is 10202332122.

22123320201 is a `hidden beast` number, since 22 + 123 + 320 + 201 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-22123320201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22123320701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1436611 + ... + 1451928.

It is an arithmetic number, because the mean of its divisors is an integer number (1426938760).

Almost surely, 2^22123320201 is an apocalyptic number.

It is an amenable number.

22123320201 is a deficient number, since it is larger than the sum of its proper divisors (12123210039).

22123320201 is a wasteful number, since it uses less digits than its factorization.

22123320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888605 (or 2888602 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22123320201 its reverse (10202332122), we get a palindrome (32325652323).

The spelling of 22123320201 in words is "twenty-two billion, one hundred twenty-three million, three hundred twenty thousand, two hundred one".