3212310013221 has 4 divisors (see below), whose sum is σ = 4283080017632. Its totient is φ = 2141540008812.

The previous prime is 3212310013217. The next prime is 3212310013327. The reversal of 3212310013221 is 1223100132123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3212310013221 - 2² = 3212310013217 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 (3212310013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535385002201 + ... + 535385002206.

It is an arithmetic number, because the mean of its divisors is an integer number (1070770004408).

Almost surely, 2^{3212310013221} is an apocalyptic number.

It is an amenable number.

3212310013221 is a deficient number, since it is larger than the sum of its proper divisors (1070770004411).

3212310013221 is a wasteful number, since it uses less digits than its factorization.

3212310013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070770004410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3212310013221 its reverse (1223100132123), we get a palindrome (4435410145344).

The spelling of 3212310013221 in words is "three trillion, two hundred twelve billion, three hundred ten million, thirteen thousand, two hundred twenty-one".