22060221 has 4 divisors (see below), whose sum is σ = 29413632. Its totient is φ = 14706812.

The previous prime is 22060187. The next prime is 22060229. The reversal of 22060221 is 12206022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22060221 - 2¹³ = 22052029 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22060221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22060229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676701 + ... + 3676706.

It is an arithmetic number, because the mean of its divisors is an integer number (7353408).

Almost surely, 2^22060221 is an apocalyptic number.

It is an amenable number.

22060221 is a deficient number, since it is larger than the sum of its proper divisors (7353411).

22060221 is an equidigital number, since it uses as much as digits as its factorization.

22060221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353410.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22060221 is about 4696.8309528873. The cubic root of 22060221 is about 280.4593692440.

Adding to 22060221 its reverse (12206022), we get a palindrome (34266243).

The spelling of 22060221 in words is "twenty-two million, sixty thousand, two hundred twenty-one".