22412209 has 4 divisors (see below), whose sum is σ = 22518640. Its totient is φ = 22305780.

The previous prime is 22412197. The next prime is 22412213. The reversal of 22412209 is 90221422.

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 22412209 - 2⁵ = 22412177 is a prime.

It is a super-2 number, since 2×22412209² = 1004614224519362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22412209.

It is not an unprimeable number, because it can be changed into a prime (22412219) 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, 52899 + ... + 53320.

It is an arithmetic number, because the mean of its divisors is an integer number (5629660).

Almost surely, 2^22412209 is an apocalyptic number.

It is an amenable number.

22412209 is a deficient number, since it is larger than the sum of its proper divisors (106431).

22412209 is a wasteful number, since it uses less digits than its factorization.

22412209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106430.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22412209 is about 4734.1534618134. The cubic root of 22412209 is about 281.9431545463.

The spelling of 22412209 in words is "twenty-two million, four hundred twelve thousand, two hundred nine".