221316202 has 8 divisors (see below), whose sum is σ = 332668800. Its totient is φ = 110426604.

The previous prime is 221316191. The next prime is 221316229. The reversal of 221316202 is 202613122.

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

It is a super-2 number, since 2×221316202² = 97961722535409608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221316202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114552 + ... + 116467.

It is an arithmetic number, because the mean of its divisors is an integer number (41583600).

Almost surely, 2^221316202 is an apocalyptic number.

221316202 is a deficient number, since it is larger than the sum of its proper divisors (111352598).

221316202 is a wasteful number, since it uses less digits than its factorization.

221316202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231500.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 221316202 is about 14876.6999700875. The cubic root of 221316202 is about 604.8825690164.

Adding to 221316202 its reverse (202613122), we get a palindrome (423929324).

The spelling of 221316202 in words is "two hundred twenty-one million, three hundred sixteen thousand, two hundred two".