3991110212 has 24 divisors (see below), whose sum is σ = 7018837056. Its totient is φ = 1985746208.

The previous prime is 3991110199. The next prime is 3991110269. The reversal of 3991110212 is 2120111993.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348238 + ... + 1351194.

It is an arithmetic number, because the mean of its divisors is an integer number (292451544).

Almost surely, 2^3991110212 is an apocalyptic number.

It is an amenable number.

3991110212 is a deficient number, since it is larger than the sum of its proper divisors (3027726844).

3991110212 is a wasteful number, since it uses less digits than its factorization.

3991110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507 (or 4505 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 3991110212 is about 63175.2341665625. The cubic root of 3991110212 is about 1586.2242081442.

The spelling of 3991110212 in words is "three billion, nine hundred ninety-one million, one hundred ten thousand, two hundred twelve".