221368006 has 8 divisors (see below), whose sum is σ = 332351064. Its totient is φ = 110584320.

The previous prime is 221367983. The next prime is 221368013. The reversal of 221368006 is 600863122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47035 + ... + 51526.

It is an arithmetic number, because the mean of its divisors is an integer number (41543883).

Almost surely, 2^221368006 is an apocalyptic number.

221368006 is a deficient number, since it is larger than the sum of its proper divisors (110983058).

221368006 is a wasteful number, since it uses less digits than its factorization.

221368006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99686.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 221368006 is about 14878.4409801565. The cubic root of 221368006 is about 604.9297607595.

The spelling of 221368006 in words is "two hundred twenty-one million, three hundred sixty-eight thousand, six".