3311001323221 has 4 divisors (see below), whose sum is σ = 3315155654412. Its totient is φ = 3306846992032.

The previous prime is 3311001323177. The next prime is 3311001323263. The reversal of 3311001323221 is 1223231001133.

3311001323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2584091615121 + 726909708100 = 1607511^2 + 852590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3311001323221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311001323192 and 3311001323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311001323921) 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, 2077164400 + ... + 2077165993.

It is an arithmetic number, because the mean of its divisors is an integer number (828788913603).

Almost surely, 2^{3311001323221} is an apocalyptic number.

It is an amenable number.

3311001323221 is a deficient number, since it is larger than the sum of its proper divisors (4154331191).

3311001323221 is an equidigital number, since it uses as much as digits as its factorization.

3311001323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154331190.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3311001323221 its reverse (1223231001133), we get a palindrome (4534232324354).

The spelling of 3311001323221 in words is "three trillion, three hundred eleven billion, one million, three hundred twenty-three thousand, two hundred twenty-one".