22161133 has 8 divisors (see below), whose sum is σ = 22978080. Its totient is φ = 21347760.

The previous prime is 22161131. The next prime is 22161179. The reversal of 22161133 is 33116122.

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 22161133 - 2¹ = 22161131 is a prime.

It is a super-2 number, since 2×22161133² = 982231631687378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22161133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161131) 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 7 ways as a sum of consecutive naturals, for example, 22338 + ... + 23308.

It is an arithmetic number, because the mean of its divisors is an integer number (2872260).

Almost surely, 2^22161133 is an apocalyptic number.

It is an amenable number.

22161133 is a deficient number, since it is larger than the sum of its proper divisors (816947).

22161133 is an equidigital number, since it uses as much as digits as its factorization.

22161133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787.

The product of its digits is 216, while the sum is 19.

The square root of 22161133 is about 4707.5612582313. The cubic root of 22161133 is about 280.8863621084.

Adding to 22161133 its reverse (33116122), we get a palindrome (55277255).

The spelling of 22161133 in words is "twenty-two million, one hundred sixty-one thousand, one hundred thirty-three".