221464006 has 4 divisors (see below), whose sum is σ = 332196012. Its totient is φ = 110732002.

The previous prime is 221463961. The next prime is 221464021. The reversal of 221464006 is 600464122.

221464006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55366000 + ... + 55366003.

It is an arithmetic number, because the mean of its divisors is an integer number (83049003).

Almost surely, 2^221464006 is an apocalyptic number.

221464006 is a deficient number, since it is larger than the sum of its proper divisors (110732006).

221464006 is a wasteful number, since it uses less digits than its factorization.

221464006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110732005.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 221464006 is about 14881.6667749281. Note that the first 3 decimals coincide. The cubic root of 221464006 is about 605.0171941474.

The spelling of 221464006 in words is "two hundred twenty-one million, four hundred sixty-four thousand, six".