221373323 has 8 divisors (see below), whose sum is σ = 223236000. Its totient is φ = 219515968.

The previous prime is 221373311. The next prime is 221373343. The reversal of 221373323 is 323373122.

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 221373323 - 2⁴ = 221373307 is a prime.

It is a super-2 number, since 2×221373323² = 98012296272124658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221373292 and 221373301.

It is not an unprimeable number, because it can be changed into a prime (221373343) 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, 141218 + ... + 142776.

It is an arithmetic number, because the mean of its divisors is an integer number (27904500).

Almost surely, 2^221373323 is an apocalyptic number.

221373323 is a deficient number, since it is larger than the sum of its proper divisors (1862677).

221373323 is a wasteful number, since it uses less digits than its factorization.

221373323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661.

The product of its digits is 4536, while the sum is 26.

The square root of 221373323 is about 14878.6196604389. The cubic root of 221373323 is about 604.9346039553.

The spelling of 221373323 in words is "two hundred twenty-one million, three hundred seventy-three thousand, three hundred twenty-three".