9890201212 has 6 divisors (see below), whose sum is σ = 17307852128. Its totient is φ = 4945100604.

The previous prime is 9890201207. The next prime is 9890201303. The reversal of 9890201212 is 2121020989.

9890201212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1236275148 + ... + 1236275155.

Almost surely, 2^9890201212 is an apocalyptic number.

It is an amenable number.

9890201212 is a deficient number, since it is larger than the sum of its proper divisors (7417650916).

9890201212 is a wasteful number, since it uses less digits than its factorization.

9890201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472550307 (or 2472550305 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 9890201212 is about 99449.4907578717. The cubic root of 9890201212 is about 2146.5205094584.

The spelling of 9890201212 in words is "nine billion, eight hundred ninety million, two hundred one thousand, two hundred twelve".