232204221421 has 4 divisors (see below), whose sum is σ = 232648207072. Its totient is φ = 231760235772.

The previous prime is 232204221419. The next prime is 232204221427. The reversal of 232204221421 is 124122402232.

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 232204221421 - 2¹ = 232204221419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232204221427) 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, 221992041 + ... + 221993086.

It is an arithmetic number, because the mean of its divisors is an integer number (58162051768).

Almost surely, 2^232204221421 is an apocalyptic number.

It is an amenable number.

232204221421 is a deficient number, since it is larger than the sum of its proper divisors (443985651).

232204221421 is an equidigital number, since it uses as much as digits as its factorization.

232204221421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443985650.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 232204221421 its reverse (124122402232), we get a palindrome (356326623653).

The spelling of 232204221421 in words is "two hundred thirty-two billion, two hundred four million, two hundred twenty-one thousand, four hundred twenty-one".