22109799 has 16 divisors (see below), whose sum is σ = 30100608. Its totient is φ = 14432352.

The previous prime is 22109797. The next prime is 22109819. The reversal of 22109799 is 99790122.

It is a happy number.

It is not a de Polignac number, because 22109799 - 2¹ = 22109797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63544 + ... + 63890.

It is an arithmetic number, because the mean of its divisors is an integer number (1881288).

Almost surely, 2^22109799 is an apocalyptic number.

22109799 is a deficient number, since it is larger than the sum of its proper divisors (7990809).

22109799 is a wasteful number, since it uses less digits than its factorization.

22109799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 22109799 is about 4702.1058048496. The cubic root of 22109799 is about 280.6693129131.

The spelling of 22109799 in words is "twenty-two million, one hundred nine thousand, seven hundred ninety-nine".