3221013012013 has 4 divisors (see below), whose sum is σ = 3221017251228. Its totient is φ = 3221008772800.

The previous prime is 3221013012001. The next prime is 3221013012037. The reversal of 3221013012013 is 3102103101223.

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 1531213206084 + 1689799805929 = 1237422^2 + 1299923^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221013012013 - 2⁵ = 3221013011981 is a prime.

It is a super-4 number, since 4×3221013012013⁴ (a number of 51 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221013012043) 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, 631756 + ... + 2615557.

It is an arithmetic number, because the mean of its divisors is an integer number (805254312807).

Almost surely, 2^{3221013012013} is an apocalyptic number.

It is an amenable number.

3221013012013 is a deficient number, since it is larger than the sum of its proper divisors (4239215).

3221013012013 is an equidigital number, since it uses as much as digits as its factorization.

3221013012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239214.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 3221013012013 its reverse (3102103101223), we get a palindrome (6323116113236).

The spelling of 3221013012013 in words is "three trillion, two hundred twenty-one billion, thirteen million, twelve thousand, thirteen".