3312311112221 has 12 divisors (see below), whose sum is σ = 3362401754100. Its totient is φ = 3262916963328.

The previous prime is 3312311112217. The next prime is 3312311112251. The reversal of 3312311112221 is 1222111132133.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1457645728900 + 1854665383321 = 1207330^2 + 1361861^2 .

It is not a de Polignac number, because 3312311112221 - 2² = 3312311112217 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 (3312311112251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1353485 + ... + 2908013.

It is an arithmetic number, because the mean of its divisors is an integer number (280200146175).

Almost surely, 2^{3312311112221} is an apocalyptic number.

It is an amenable number.

3312311112221 is a deficient number, since it is larger than the sum of its proper divisors (50090641879).

3312311112221 is an equidigital number, since it uses as much as digits as its factorization.

3312311112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554976 (or 1554887 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 3312311112221 its reverse (1222111132133), we get a palindrome (4534422244354).

The spelling of 3312311112221 in words is "three trillion, three hundred twelve billion, three hundred eleven million, one hundred twelve thousand, two hundred twenty-one".