23221330 has 32 divisors (see below), whose sum is σ = 45800640. Its totient is φ = 8406720.

The previous prime is 23221327. The next prime is 23221349. The reversal of 23221330 is 3312232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41412 + ... + 41968.

It is an arithmetic number, because the mean of its divisors is an integer number (1431270).

Almost surely, 2^23221330 is an apocalyptic number.

23221330 is a deficient number, since it is larger than the sum of its proper divisors (22579310).

23221330 is a wasteful number, since it uses less digits than its factorization.

23221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23221330 is about 4818.8515229254. The cubic root of 23221330 is about 285.2960092652.

Adding to 23221330 its reverse (3312232), we get a palindrome (26533562).

The spelling of 23221330 in words is "twenty-three million, two hundred twenty-one thousand, three hundred thirty".