232223122221 has 4 divisors (see below), whose sum is σ = 309630829632. Its totient is φ = 154815414812.

The previous prime is 232223122211. The next prime is 232223122273. The reversal of 232223122221 is 122221322232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232223122221 - 2⁷ = 232223122093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232223122191 and 232223122200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232223122211) 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, 38703853701 + ... + 38703853706.

It is an arithmetic number, because the mean of its divisors is an integer number (77407707408).

Almost surely, 2^232223122221 is an apocalyptic number.

It is an amenable number.

232223122221 is a deficient number, since it is larger than the sum of its proper divisors (77407707411).

232223122221 is an equidigital number, since it uses as much as digits as its factorization.

232223122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77407707410.

The product of its digits is 2304, while the sum is 24.

Adding to 232223122221 its reverse (122221322232), we get a palindrome (354444444453).

The spelling of 232223122221 in words is "two hundred thirty-two billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-one".