320212232121 has 8 divisors (see below), whose sum is σ = 426987401184. Its totient is φ = 213455942240.

The previous prime is 320212232117. The next prime is 320212232141. The reversal of 320212232121 is 121232212023.

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

It is a cyclic number.

It is not a de Polignac number, because 320212232121 - 2² = 320212232117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320212232111) 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, 4680171 + ... + 4748096.

It is an arithmetic number, because the mean of its divisors is an integer number (53373425148).

Almost surely, 2^320212232121 is an apocalyptic number.

It is an amenable number.

320212232121 is a deficient number, since it is larger than the sum of its proper divisors (106775169063).

320212232121 is a wasteful number, since it uses less digits than its factorization.

320212232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439591.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 320212232121 its reverse (121232212023), we get a palindrome (441444444144).

The spelling of 320212232121 in words is "three hundred twenty billion, two hundred twelve million, two hundred thirty-two thousand, one hundred twenty-one".