22202109 has 24 divisors (see below), whose sum is σ = 33507032. Its totient is φ = 14152320.

The previous prime is 22202093. The next prime is 22202111. The reversal of 22202109 is 90120222.

It can be written as a sum of positive squares in 4 ways, for example, as 8139609 + 14062500 = 2853^2 + 3750^2 .

It is not a de Polignac number, because 22202109 - 2⁴ = 22202093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202091 and 22202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19767 + ... + 20859.

Almost surely, 2^22202109 is an apocalyptic number.

It is an amenable number.

22202109 is a deficient number, since it is larger than the sum of its proper divisors (11304923).

22202109 is a wasteful number, since it uses less digits than its factorization.

22202109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22202109 is about 4711.9113956016. The cubic root of 22202109 is about 281.0593754210.

The spelling of 22202109 in words is "twenty-two million, two hundred two thousand, one hundred nine".