9122001212 has 12 divisors (see below), whose sum is σ = 16078348440. Its totient is φ = 4528187376.

The previous prime is 9122001199. The next prime is 9122001277. The reversal of 9122001212 is 2121002219.

It is a happy number.

It is a super-2 number, since 2×9122001212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8202683 + ... + 8203794.

It is an arithmetic number, because the mean of its divisors is an integer number (1339862370).

Almost surely, 2^9122001212 is an apocalyptic number.

It is an amenable number.

9122001212 is a deficient number, since it is larger than the sum of its proper divisors (6956347228).

9122001212 is a wasteful number, since it uses less digits than its factorization.

9122001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16406620 (or 16406618 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 9122001212 is about 95509.1682091306. The cubic root of 9122001212 is about 2089.4406607404.

The spelling of 9122001212 in words is "nine billion, one hundred twenty-two million, one thousand, two hundred twelve".