3312312221 has 8 divisors (see below), whose sum is σ = 3379139424. Its totient is φ = 3245645520.

The previous prime is 3312312197. The next prime is 3312312229. The reversal of 3312312221 is 1222132133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3312312221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3312312193 and 3312312202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3312312229) 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, 2006 + ... + 81416.

It is an arithmetic number, because the mean of its divisors is an integer number (422392428).

Almost surely, 2^3312312221 is an apocalyptic number.

It is an amenable number.

3312312221 is a deficient number, since it is larger than the sum of its proper divisors (66827203).

3312312221 is an equidigital number, since it uses as much as digits as its factorization.

3312312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80251.

The product of its digits is 432, while the sum is 20.

The square root of 3312312221 is about 57552.6908232795. The cubic root of 3312312221 is about 1490.6548209579.

Adding to 3312312221 its reverse (1222132133), we get a palindrome (4534444354).

The spelling of 3312312221 in words is "three billion, three hundred twelve million, three hundred twelve thousand, two hundred twenty-one".