2232312443221 has 4 divisors (see below), whose sum is σ = 2551214220832. Its totient is φ = 1913410665612.

The previous prime is 2232312443219. The next prime is 2232312443261. The reversal of 2232312443221 is 1223442132322.

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 2232312443221 - 2¹ = 2232312443219 is a prime.

It is a super-3 number, since 3×2232312443221³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232312443261) 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, 159450888795 + ... + 159450888808.

It is an arithmetic number, because the mean of its divisors is an integer number (637803555208).

Almost surely, 2^{2232312443221} is an apocalyptic number.

It is an amenable number.

2232312443221 is a deficient number, since it is larger than the sum of its proper divisors (318901777611).

2232312443221 is an equidigital number, since it uses as much as digits as its factorization.

2232312443221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318901777610.

The product of its digits is 27648, while the sum is 31.

Adding to 2232312443221 its reverse (1223442132322), we get a palindrome (3455754575543).

The spelling of 2232312443221 in words is "two trillion, two hundred thirty-two billion, three hundred twelve million, four hundred forty-three thousand, two hundred twenty-one".