333672221 has 4 divisors (see below), whose sum is σ = 337896000. Its totient is φ = 329448444.

The previous prime is 333672203. The next prime is 333672299. The reversal of 333672221 is 122276333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-333672221 is a prime.

It is a super-2 number, since 2×333672221² = 222674302134145682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333672421) 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, 2111771 + ... + 2111928.

It is an arithmetic number, because the mean of its divisors is an integer number (84474000).

Almost surely, 2^333672221 is an apocalyptic number.

It is an amenable number.

333672221 is a deficient number, since it is larger than the sum of its proper divisors (4223779).

333672221 is an equidigital number, since it uses as much as digits as its factorization.

333672221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223778.

The product of its digits is 9072, while the sum is 29.

The square root of 333672221 is about 18266.6970468117. The cubic root of 333672221 is about 693.5961663510.

It can be divided in two parts, 3336 and 72221, that added together give a palindrome (75557).

The spelling of 333672221 in words is "three hundred thirty-three million, six hundred seventy-two thousand, two hundred twenty-one".