21110196 has 24 divisors (see below), whose sum is σ = 49333984. Its totient is φ = 7025760.

The previous prime is 21110189. The next prime is 21110227. The reversal of 21110196 is 69101112.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11391 + ... + 13113.

Almost surely, 2^21110196 is an apocalyptic number.

It is an amenable number.

21110196 is an abundant number, since it is smaller than the sum of its proper divisors (28223788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110196 is a wasteful number, since it uses less digits than its factorization.

21110196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 21110196 is about 4594.5833325776. The cubic root of 21110196 is about 276.3741512489.

The spelling of 21110196 in words is "twenty-one million, one hundred ten thousand, one hundred ninety-six".