22441212209 has 4 divisors (see below), whose sum is σ = 24167459316. Its totient is φ = 20714965104.

The previous prime is 22441212193. The next prime is 22441212221. The reversal of 22441212209 is 90221214422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13459480225 + 8981731984 = 116015^2 + 94772^2 .

It is a cyclic number.

It is not a de Polignac number, because 22441212209 - 2⁴ = 22441212193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22441212259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863123534 + ... + 863123559.

It is an arithmetic number, because the mean of its divisors is an integer number (6041864829).

Almost surely, 2^22441212209 is an apocalyptic number.

It is an amenable number.

22441212209 is a deficient number, since it is larger than the sum of its proper divisors (1726247107).

22441212209 is a wasteful number, since it uses less digits than its factorization.

22441212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726247106.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 22441212209 in words is "twenty-two billion, four hundred forty-one million, two hundred twelve thousand, two hundred nine".