7221233 has 8 divisors (see below), whose sum is σ = 7558656. Its totient is φ = 6890400.

The previous prime is 7221199. The next prime is 7221251. The reversal of 7221233 is 3321227.

7221233 = T₆₆₇ + T₆₆₈ + ... + T₆₉₇.

7221233 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 7221233 - 2⁶ = 7221169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7221283) 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, 668 + ... + 3858.

It is an arithmetic number, because the mean of its divisors is an integer number (944832).

Almost surely, 2^7221233 is an apocalyptic number.

7221233 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7221233 is a deficient number, since it is larger than the sum of its proper divisors (337423).

7221233 is a wasteful number, since it uses less digits than its factorization.

7221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its digits is 504, while the sum is 20.

The square root of 7221233 is about 2687.2351962566. The cubic root of 7221233 is about 193.2875076353.

The spelling of 7221233 in words is "seven million, two hundred twenty-one thousand, two hundred thirty-three".