3230121323221 has 4 divisors (see below), whose sum is σ = 3478592194252. Its totient is φ = 2981650452192.

The previous prime is 3230121323173. The next prime is 3230121323243. The reversal of 3230121323221 is 1223231210323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 990641996100 + 2239479327121 = 995310^2 + 1496489^2 .

It is a cyclic number.

It is not a de Polignac number, because 3230121323221 - 2²¹ = 3230119226069 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 (3230121323321) 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, 124235435496 + ... + 124235435521.

It is an arithmetic number, because the mean of its divisors is an integer number (869648048563).

Almost surely, 2^{3230121323221} is an apocalyptic number.

It is an amenable number.

3230121323221 is a deficient number, since it is larger than the sum of its proper divisors (248470871031).

3230121323221 is a wasteful number, since it uses less digits than its factorization.

3230121323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248470871030.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3230121323221 its reverse (1223231210323), we get a palindrome (4453352533544).

The spelling of 3230121323221 in words is "three trillion, two hundred thirty billion, one hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-one".