22182061 has 4 divisors (see below), whose sum is σ = 24198624. Its totient is φ = 20165500.

The previous prime is 22182049. The next prime is 22182067. The reversal of 22182061 is 16028122.

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 22182061 - 2⁵ = 22182029 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22182067) 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, 1008265 + ... + 1008286.

It is an arithmetic number, because the mean of its divisors is an integer number (6049656).

Almost surely, 2^22182061 is an apocalyptic number.

It is an amenable number.

22182061 is a deficient number, since it is larger than the sum of its proper divisors (2016563).

22182061 is a wasteful number, since it uses less digits than its factorization.

22182061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016562.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 22182061 is about 4709.7835406736. The cubic root of 22182061 is about 280.9747532017.

The spelling of 22182061 in words is "twenty-two million, one hundred eighty-two thousand, sixty-one".