3221100223321 has 4 divisors (see below), whose sum is σ = 3299663643444. Its totient is φ = 3142536803200.

The previous prime is 3221100223303. The next prime is 3221100223337. The reversal of 3221100223321 is 1233220011223.

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 288320672025 + 2932779551296 = 536955^2 + 1712536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221100223321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221100223292 and 3221100223301.

It is not an unprimeable number, because it can be changed into a prime (3221100223351) 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, 39281710000 + ... + 39281710081.

It is an arithmetic number, because the mean of its divisors is an integer number (824915910861).

Almost surely, 2^{3221100223321} is an apocalyptic number.

It is an amenable number.

3221100223321 is a deficient number, since it is larger than the sum of its proper divisors (78563420123).

3221100223321 is an equidigital number, since it uses as much as digits as its factorization.

3221100223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78563420122.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3221100223321 its reverse (1233220011223), we get a palindrome (4454320234544).

The spelling of 3221100223321 in words is "three trillion, two hundred twenty-one billion, one hundred million, two hundred twenty-three thousand, three hundred twenty-one".