221364333979 has 8 divisors (see below), whose sum is σ = 225056451600. Its totient is φ = 217701636000.

The previous prime is 221364333929. The next prime is 221364334063. The reversal of 221364333979 is 979333463122.

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

It is a cyclic number.

It is not a de Polignac number, because 221364333979 - 2¹⁷ = 221364202907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221364333929) 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, 7339737 + ... + 7369834.

It is an arithmetic number, because the mean of its divisors is an integer number (28132056450).

Almost surely, 2^221364333979 is an apocalyptic number.

221364333979 is a deficient number, since it is larger than the sum of its proper divisors (3692117621).

221364333979 is a wasteful number, since it uses less digits than its factorization.

221364333979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14709821.

The product of its digits is 4408992, while the sum is 52.

The spelling of 221364333979 in words is "two hundred twenty-one billion, three hundred sixty-four million, three hundred thirty-three thousand, nine hundred seventy-nine".