229121272 has 16 divisors (see below), whose sum is σ = 429764400. Its totient is φ = 114517440.

The previous prime is 229121261. The next prime is 229121273. The reversal of 229121272 is 272121922.

229121272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 229121272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229121273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34372 + ... + 40492.

It is an arithmetic number, because the mean of its divisors is an integer number (26860275).

Almost surely, 2^229121272 is an apocalyptic number.

It is an amenable number.

229121272 is a deficient number, since it is larger than the sum of its proper divisors (200643128).

229121272 is a wasteful number, since it uses less digits than its factorization.

229121272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806 (or 10802 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 229121272 is about 15136.7523597369. The cubic root of 229121272 is about 611.9112961845.

The spelling of 229121272 in words is "two hundred twenty-nine million, one hundred twenty-one thousand, two hundred seventy-two".