22274191 has 4 divisors (see below), whose sum is σ = 22587984. Its totient is φ = 21960400.

The previous prime is 22274183. The next prime is 22274201. The reversal of 22274191 is 19147222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22274191 - 2³ = 22274183 is a prime.

It is a super-2 number, since 2×22274191² = 992279169408962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22274141) 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, 156790 + ... + 156931.

It is an arithmetic number, because the mean of its divisors is an integer number (5646996).

Almost surely, 2^22274191 is an apocalyptic number.

22274191 is a deficient number, since it is larger than the sum of its proper divisors (313793).

22274191 is an equidigital number, since it uses as much as digits as its factorization.

22274191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313792.

The product of its digits is 2016, while the sum is 28.

The square root of 22274191 is about 4719.5541102947. The cubic root of 22274191 is about 281.3632119698.

The spelling of 22274191 in words is "twenty-two million, two hundred seventy-four thousand, one hundred ninety-one".