3120333423221 has 16 divisors (see below), whose sum is σ = 3721710758400. Its totient is φ = 2559492273408.

The previous prime is 3120333423217. The next prime is 3120333423239. The reversal of 3120333423221 is 1223243330213.

It is a happy number.

It is not a de Polignac number, because 3120333423221 - 2² = 3120333423217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120333423421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67990781 + ... + 68036658.

It is an arithmetic number, because the mean of its divisors is an integer number (232606922400).

Almost surely, 2^{3120333423221} is an apocalyptic number.

It is an amenable number.

3120333423221 is a deficient number, since it is larger than the sum of its proper divisors (601377335179).

3120333423221 is a wasteful number, since it uses less digits than its factorization.

3120333423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136027588.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 3120333423221 its reverse (1223243330213), we get a palindrome (4343576753434).

The spelling of 3120333423221 in words is "three trillion, one hundred twenty billion, three hundred thirty-three million, four hundred twenty-three thousand, two hundred twenty-one".