221134315 has 8 divisors (see below), whose sum is σ = 273921408. Its totient is φ = 171200640.

The previous prime is 221134313. The next prime is 221134321. The reversal of 221134315 is 513431122.

It is a happy number.

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

It is not a de Polignac number, because 221134315 - 2¹ = 221134313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221134313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713182 + ... + 713491.

It is an arithmetic number, because the mean of its divisors is an integer number (34240176).

Almost surely, 2^221134315 is an apocalyptic number.

221134315 is a deficient number, since it is larger than the sum of its proper divisors (52787093).

221134315 is a wasteful number, since it uses less digits than its factorization.

221134315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426709.

The product of its digits is 720, while the sum is 22.

The square root of 221134315 is about 14870.5855634538. The cubic root of 221134315 is about 604.7168175887.

Adding to 221134315 its reverse (513431122), we get a palindrome (734565437).

The spelling of 221134315 in words is "two hundred twenty-one million, one hundred thirty-four thousand, three hundred fifteen".