229221321 has 8 divisors (see below), whose sum is σ = 349289664. Its totient is φ = 130983600.

The previous prime is 229221281. The next prime is 229221323. The reversal of 229221321 is 123122922.

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

It is not a de Polignac number, because 229221321 - 2⁷ = 229221193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229221291 and 229221300.

It is not an unprimeable number, because it can be changed into a prime (229221323) 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, 5457630 + ... + 5457671.

It is an arithmetic number, because the mean of its divisors is an integer number (43661208).

Almost surely, 2^229221321 is an apocalyptic number.

229221321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

229221321 is a deficient number, since it is larger than the sum of its proper divisors (120068343).

229221321 is a wasteful number, since it uses less digits than its factorization.

229221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10915311.

The product of its digits is 864, while the sum is 24.

The square root of 229221321 is about 15140.0568360888. The cubic root of 229221321 is about 612.0003497584. Note that the first 3 decimals are identical.

The spelling of 229221321 in words is "two hundred twenty-nine million, two hundred twenty-one thousand, three hundred twenty-one".