9912212 has 12 divisors (see below), whose sum is σ = 17373216. Its totient is φ = 4948440.

The previous prime is 9912211. The next prime is 9912251. The reversal of 9912212 is 2122199.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787 + ... + 4797.

It is an arithmetic number, because the mean of its divisors is an integer number (1447768).

Almost surely, 2^9912212 is an apocalyptic number.

It is an amenable number.

9912212 is a deficient number, since it is larger than the sum of its proper divisors (7461004).

9912212 is a wasteful number, since it uses less digits than its factorization.

9912212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838 (or 3836 counting only the distinct ones).

The product of its digits is 648, while the sum is 26.

The square root of 9912212 is about 3148.3665606152. The cubic root of 9912212 is about 214.8111700604.

The spelling of 9912212 in words is "nine million, nine hundred twelve thousand, two hundred twelve".