22056871 has 8 divisors (see below), whose sum is σ = 23480064. Its totient is φ = 20647680.

The previous prime is 22056823. The next prime is 22056883. The reversal of 22056871 is 17865022.

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 22056871 - 2⁷ = 22056743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056821) 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, 150 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (2935008).

Almost surely, 2^22056871 is an apocalyptic number.

22056871 is a deficient number, since it is larger than the sum of its proper divisors (1423193).

22056871 is a wasteful number, since it uses less digits than its factorization.

22056871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 22056871 is about 4696.4743159098. The cubic root of 22056871 is about 280.4451719481.

The spelling of 22056871 in words is "twenty-two million, fifty-six thousand, eight hundred seventy-one".