3120021323221 has 8 divisors (see below), whose sum is σ = 3403710108000. Its totient is φ = 2836340952240.

The previous prime is 3120021323197. The next prime is 3120021323239. The reversal of 3120021323221 is 1223231200213.

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 3120021323221 - 2¹¹ = 3120021321173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120021323192 and 3120021323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120021323261) 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, 1315246 + ... + 2823103.

It is an arithmetic number, because the mean of its divisors is an integer number (425463763500).

Almost surely, 2^{3120021323221} is an apocalyptic number.

It is an amenable number.

3120021323221 is a deficient number, since it is larger than the sum of its proper divisors (283688784779).

3120021323221 is a wasteful number, since it uses less digits than its factorization.

3120021323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206899.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3120021323221 its reverse (1223231200213), we get a palindrome (4343252523434).

The spelling of 3120021323221 in words is "three trillion, one hundred twenty billion, twenty-one million, three hundred twenty-three thousand, two hundred twenty-one".