3221212120219 has 4 divisors (see below), whose sum is σ = 3221594740840. Its totient is φ = 3220829499600.

The previous prime is 3221212120199. The next prime is 3221212120229. The reversal of 3221212120219 is 9120212121223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3221212120219 - 2⁵ = 3221212120187 is a prime.

It is a super-2 number, since 2×3221212120219² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221212120229) 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, 191297682 + ... + 191314519.

It is an arithmetic number, because the mean of its divisors is an integer number (805398685210).

Almost surely, 2^{3221212120219} is an apocalyptic number.

3221212120219 is a deficient number, since it is larger than the sum of its proper divisors (382620621).

3221212120219 is an equidigital number, since it uses as much as digits as its factorization.

3221212120219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382620620.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 3221212120219 in words is "three trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty thousand, two hundred nineteen".