3214103213221 has 4 divisors (see below), whose sum is σ = 3214107551500. Its totient is φ = 3214098874944.

The previous prime is 3214103213213. The next prime is 3214103213239. The reversal of 3214103213221 is 1223123014123.

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 1801261936321 + 1412841276900 = 1342111^2 + 1188630^2 .

It is a cyclic number.

It is not a de Polignac number, because 3214103213221 - 2³ = 3214103213213 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 (3214103213261) 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, 747066 + ... + 2643163.

It is an arithmetic number, because the mean of its divisors is an integer number (803526887875).

Almost surely, 2^{3214103213221} is an apocalyptic number.

It is an amenable number.

3214103213221 is a deficient number, since it is larger than the sum of its proper divisors (4338279).

3214103213221 is an equidigital number, since it uses as much as digits as its factorization.

3214103213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338278.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 3214103213221 its reverse (1223123014123), we get a palindrome (4437226227344).

The spelling of 3214103213221 in words is "three trillion, two hundred fourteen billion, one hundred three million, two hundred thirteen thousand, two hundred twenty-one".