202220109 has 48 divisors (see below), whose sum is σ = 366912000. Its totient is φ = 106644384.

The previous prime is 202220107. The next prime is 202220129. The reversal of 202220109 is 901022202.

It is not a de Polignac number, because 202220109 - 2¹ = 202220107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202220091 and 202220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37612 + ... + 42650.

It is an arithmetic number, because the mean of its divisors is an integer number (7644000).

Almost surely, 2^202220109 is an apocalyptic number.

It is an amenable number.

202220109 is a deficient number, since it is larger than the sum of its proper divisors (164691891).

202220109 is a wasteful number, since it uses less digits than its factorization.

202220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079 (or 5062 counting only the distinct ones).

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

The square root of 202220109 is about 14220.4117029009. The cubic root of 202220109 is about 586.9594692763.

The spelling of 202220109 in words is "two hundred two million, two hundred twenty thousand, one hundred nine".