20222109 has 16 divisors (see below), whose sum is σ = 30038400. Its totient is φ = 13445568.

The previous prime is 20222101. The next prime is 20222113. The reversal of 20222109 is 90122202.

It is not a de Polignac number, because 20222109 - 2³ = 20222101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222091 and 20222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222101) 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 15 ways as a sum of consecutive naturals, for example, 12837 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (1877400).

Almost surely, 2^20222109 is an apocalyptic number.

It is an amenable number.

20222109 is a deficient number, since it is larger than the sum of its proper divisors (9816291).

20222109 is a wasteful number, since it uses less digits than its factorization.

20222109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1995 counting only the distinct ones).

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

The square root of 20222109 is about 4496.8999321755. The cubic root of 20222109 is about 272.4428923899.

The spelling of 20222109 in words is "twenty million, two hundred twenty-two thousand, one hundred nine".