23201222111 has 8 divisors (see below), whose sum is σ = 23293451664. Its totient is φ = 23109065280.

The previous prime is 23201221957. The next prime is 23201222119. The reversal of 23201222111 is 11122210232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23201222111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23201222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201222119) 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, 672851 + ... + 706491.

It is an arithmetic number, because the mean of its divisors is an integer number (2911681458).

Almost surely, 2^23201222111 is an apocalyptic number.

23201222111 is a deficient number, since it is larger than the sum of its proper divisors (92229553).

23201222111 is a wasteful number, since it uses less digits than its factorization.

23201222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36361.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23201222111 its reverse (11122210232), we get a palindrome (34323432343).

The spelling of 23201222111 in words is "twenty-three billion, two hundred one million, two hundred twenty-two thousand, one hundred eleven".