209922112 has 14 divisors (see below), whose sum is σ = 416564318. Its totient is φ = 104961024.

The previous prime is 209922073. The next prime is 209922121. The reversal of 209922112 is 211229902.

It can be written as a sum of positive squares in only one way, i.e., 119596096 + 90326016 = 10936^2 + 9504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639953 + ... + 1640080.

Almost surely, 2^209922112 is an apocalyptic number.

It is an amenable number.

209922112 is a deficient number, since it is larger than the sum of its proper divisors (206642206).

209922112 is an equidigital number, since it uses as much as digits as its factorization.

209922112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280045 (or 3280035 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 209922112 is about 14488.6891056438. The cubic root of 209922112 is about 594.3187004443.

It can be divided in two parts, 20992 and 2112, that added together give a square (23104 = 152²).

The spelling of 209922112 in words is "two hundred nine million, nine hundred twenty-two thousand, one hundred twelve".