20199112 has 16 divisors (see below), whose sum is σ = 37932300. Its totient is φ = 10083840.

The previous prime is 20199107. The next prime is 20199131. The reversal of 20199112 is 21199102.

It can be written as a sum of positive squares in 2 ways, for example, as 19660356 + 538756 = 4434^2 + 734^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4912 + ... + 8032.

Almost surely, 2^20199112 is an apocalyptic number.

It is an amenable number.

20199112 is a deficient number, since it is larger than the sum of its proper divisors (17733188).

20199112 is a wasteful number, since it uses less digits than its factorization.

20199112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936 (or 3932 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 20199112 is about 4494.3422210597. The cubic root of 20199112 is about 272.3395773214.

The spelling of 20199112 in words is "twenty million, one hundred ninety-nine thousand, one hundred twelve".