22051109 has 8 divisors (see below), whose sum is σ = 22534848. Its totient is φ = 21572320.

The previous prime is 22051093. The next prime is 22051111. The reversal of 22051109 is 90115022.

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 22051109 - 2⁴ = 22051093 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 (22051009) 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, 8594 + ... + 10860.

It is an arithmetic number, because the mean of its divisors is an integer number (2816856).

Almost surely, 2^22051109 is an apocalyptic number.

It is an amenable number.

22051109 is a deficient number, since it is larger than the sum of its proper divisors (483739).

22051109 is a wasteful number, since it uses less digits than its factorization.

22051109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 22051109 is about 4695.8608369499. The cubic root of 22051109 is about 280.4207492363.

The spelling of 22051109 in words is "twenty-two million, fifty-one thousand, one hundred nine".