10202222209 has 4 divisors (see below), whose sum is σ = 10202499540. Its totient is φ = 10201944880.

The previous prime is 10202222207. The next prime is 10202222339. The reversal of 10202222209 is 90222220201.

10202222209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8623908225 + 1578313984 = 92865^2 + 39728^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202222209 - 2¹ = 10202222207 is a prime.

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 10202222209.

It is not an unprimeable number, because it can be changed into a prime (10202222207) 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, 73174 + ... + 160495.

It is an arithmetic number, because the mean of its divisors is an integer number (2550624885).

Almost surely, 2^10202222209 is an apocalyptic number.

It is an amenable number.

10202222209 is a deficient number, since it is larger than the sum of its proper divisors (277331).

10202222209 is an equidigital number, since it uses as much as digits as its factorization.

10202222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277330.

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

The spelling of 10202222209 in words is "ten billion, two hundred two million, two hundred twenty-two thousand, two hundred nine".