221315199999 has 8 divisors (see below), whose sum is σ = 310617824640. Its totient is φ = 139778021016.

The previous prime is 221315199997. The next prime is 221315200027. The reversal of 221315199999 is 999991513122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221315199999 - 2¹ = 221315199997 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221315199991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941361347 + ... + 1941361460.

It is an arithmetic number, because the mean of its divisors is an integer number (38827228080).

Almost surely, 2^221315199999 is an apocalyptic number.

221315199999 is a deficient number, since it is larger than the sum of its proper divisors (89302624641).

221315199999 is a wasteful number, since it uses less digits than its factorization.

221315199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882722829.

The product of its digits is 3542940, while the sum is 60.

The spelling of 221315199999 in words is "two hundred twenty-one billion, three hundred fifteen million, one hundred ninety-nine thousand, nine hundred ninety-nine".