22226187 has 8 divisors (see below), whose sum is σ = 29768704. Its totient is φ = 14750568.

The previous prime is 22226177. The next prime is 22226201. The reversal of 22226187 is 78162222.

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

It is not a de Polignac number, because 22226187 - 2¹⁵ = 22193419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22226117) 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, 15943 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (3721088).

Almost surely, 2^22226187 is an apocalyptic number.

22226187 is a deficient number, since it is larger than the sum of its proper divisors (7542517).

22226187 is a wasteful number, since it uses less digits than its factorization.

22226187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33449.

The product of its digits is 5376, while the sum is 30.

The square root of 22226187 is about 4714.4657173427. The cubic root of 22226187 is about 281.1609408884.

The spelling of 22226187 in words is "twenty-two million, two hundred twenty-six thousand, one hundred eighty-seven".