209922683225 has 12 divisors (see below), whose sum is σ = 274004345040. Its totient is φ = 159099296400.

The previous prime is 209922683219. The next prime is 209922683231. The reversal of 209922683225 is 522386229902.

209922683225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (209922683219) and next prime (209922683231).

It is not a de Polignac number, because 209922683225 - 2¹⁴ = 209922666841 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220970771 + ... + 220971720.

It is an arithmetic number, because the mean of its divisors is an integer number (22833695420).

Almost surely, 2^209922683225 is an apocalyptic number.

209922683225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

209922683225 is a deficient number, since it is larger than the sum of its proper divisors (64081661815).

209922683225 is a wasteful number, since it uses less digits than its factorization.

209922683225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441942520 (or 441942515 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 209922683225 in words is "two hundred nine billion, nine hundred twenty-two million, six hundred eighty-three thousand, two hundred twenty-five".