22030221 has 8 divisors (see below), whose sum is σ = 29664864. Its totient is φ = 14541200.

The previous prime is 22030213. The next prime is 22030231. The reversal of 22030221 is 12203022.

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 22030221 - 2³ = 22030213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22030197 and 22030206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36051 + ... + 36656.

It is an arithmetic number, because the mean of its divisors is an integer number (3708108).

Almost surely, 2^22030221 is an apocalyptic number.

It is an amenable number.

22030221 is a deficient number, since it is larger than the sum of its proper divisors (7634643).

22030221 is a wasteful number, since it uses less digits than its factorization.

22030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72811.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22030221 is about 4693.6362236543. The cubic root of 22030221 is about 280.3321780436.

Adding to 22030221 its reverse (12203022), we get a palindrome (34233243).

The spelling of 22030221 in words is "twenty-two million, thirty thousand, two hundred twenty-one".