22221489 has 8 divisors (see below), whose sum is σ = 29680992. Its totient is φ = 14788160.

The previous prime is 22221487. The next prime is 22221491. The reversal of 22221489 is 98412222.

It is an interprime number because it is at equal distance from previous prime (22221487) and next prime (22221491).

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 22221489 - 2¹ = 22221487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221487) 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, 4467 + ... + 8024.

It is an arithmetic number, because the mean of its divisors is an integer number (3710124).

Almost surely, 2^22221489 is an apocalyptic number.

It is an amenable number.

22221489 is a deficient number, since it is larger than the sum of its proper divisors (7459503).

22221489 is a wasteful number, since it uses less digits than its factorization.

22221489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13087.

The product of its digits is 4608, while the sum is 30.

The square root of 22221489 is about 4713.9674373080. The cubic root of 22221489 is about 281.1411296154.

The spelling of 22221489 in words is "twenty-two million, two hundred twenty-one thousand, four hundred eighty-nine".