7229121 has 8 divisors (see below), whose sum is σ = 9653280. Its totient is φ = 4812192.

The previous prime is 7229077. The next prime is 7229129. The reversal of 7229121 is 1219227.

7229121 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7229121 - 2⁹ = 7228609 is a prime.

It is a super-3 number, since 3×7229121³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7229091 and 7229100.

It is not an unprimeable number, because it can be changed into a prime (7229129) 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, 1285 + ... + 4013.

It is an arithmetic number, because the mean of its divisors is an integer number (1206660).

Almost surely, 2^7229121 is an apocalyptic number.

It is an amenable number.

7229121 is a deficient number, since it is larger than the sum of its proper divisors (2424159).

7229121 is a wasteful number, since it uses less digits than its factorization.

7229121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615.

The product of its digits is 504, while the sum is 24.

The square root of 7229121 is about 2688.7024751727. The cubic root of 7229121 is about 193.3578602124.

The spelling of 7229121 in words is "seven million, two hundred twenty-nine thousand, one hundred twenty-one".