320021219999999 has 16 divisors (see below), whose sum is σ = 365886701856000. Its totient is φ = 274192786385664.

The previous prime is 320021219999963. The next prime is 320021220000007. The reversal of 320021219999999 is 999999912120023.

It is a cyclic number.

It is not a de Polignac number, because 320021219999999 - 2²⁴ = 320021203222783 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 (320021219999399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575902112 + ... + 576457530.

It is an arithmetic number, because the mean of its divisors is an integer number (22867918866000).

Almost surely, 2^{320021219999999} is an apocalyptic number.

320021219999999 is a deficient number, since it is larger than the sum of its proper divisors (45865481856001).

320021219999999 is a wasteful number, since it uses less digits than its factorization.

320021219999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588622.

The product of its (nonzero) digits is 114791256, while the sum is 74.

The spelling of 320021219999999 in words is "three hundred twenty trillion, twenty-one billion, two hundred nineteen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".