22121230 has 8 divisors (see below), whose sum is σ = 39818232. Its totient is φ = 8848488.

The previous prime is 22121213. The next prime is 22121293. The reversal of 22121230 is 3212122.

22121230 is nontrivially palindromic in base 9.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22121230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106052 + ... + 1106071.

It is an arithmetic number, because the mean of its divisors is an integer number (4977279).

Almost surely, 2^22121230 is an apocalyptic number.

22121230 is a deficient number, since it is larger than the sum of its proper divisors (17697002).

22121230 is a wasteful number, since it uses less digits than its factorization.

22121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212130.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22121230 is about 4703.3211670053. The cubic root of 22121230 is about 280.7176742476.

Adding to 22121230 its reverse (3212122), we get a palindrome (25333352).

The spelling of 22121230 in words is "twenty-two million, one hundred twenty-one thousand, two hundred thirty".