229215219 has 4 divisors (see below), whose sum is σ = 305620296. Its totient is φ = 152810144.

The previous prime is 229215211. The next prime is 229215223. The reversal of 229215219 is 912512922.

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

It is a cyclic number.

It is not a de Polignac number, because 229215219 - 2³ = 229215211 is a prime.

It is a super-2 number, since 2×229215219² = 105079233242435922, 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 229215219.

It is not an unprimeable number, because it can be changed into a prime (229215211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38202534 + ... + 38202539.

It is an arithmetic number, because the mean of its divisors is an integer number (76405074).

Almost surely, 2^229215219 is an apocalyptic number.

229215219 is a deficient number, since it is larger than the sum of its proper divisors (76405077).

229215219 is an equidigital number, since it uses as much as digits as its factorization.

229215219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76405076.

The product of its digits is 6480, while the sum is 33.

The square root of 229215219 is about 15139.8553163496. The cubic root of 229215219 is about 611.9949191128.

The spelling of 229215219 in words is "two hundred twenty-nine million, two hundred fifteen thousand, two hundred nineteen".