221150315 has 16 divisors (see below), whose sum is σ = 272795040. Its totient is φ = 172043520.

The previous prime is 221150287. The next prime is 221150323. The reversal of 221150315 is 513051122.

It is a happy number.

It is not a de Polignac number, because 221150315 - 2¹⁴ = 221133931 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23072 + ... + 31218.

It is an arithmetic number, because the mean of its divisors is an integer number (17049690).

Almost surely, 2^221150315 is an apocalyptic number.

221150315 is a deficient number, since it is larger than the sum of its proper divisors (51644725).

221150315 is an equidigital number, since it uses as much as digits as its factorization.

221150315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8302.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 221150315 is about 14871.1235285032. The cubic root of 221150315 is about 604.7314018407.

The spelling of 221150315 in words is "two hundred twenty-one million, one hundred fifty thousand, three hundred fifteen".