2112131206 has 16 divisors (see below), whose sum is σ = 3223483200. Its totient is φ = 1037654568.

The previous prime is 2112131201. The next prime is 2112131207. The reversal of 2112131206 is 6021312112.

It is a super-2 number, since 2×2112131206² = 8922196462718028872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112131201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370405 + ... + 376063.

It is an arithmetic number, because the mean of its divisors is an integer number (201467700).

Almost surely, 2^2112131206 is an apocalyptic number.

2112131206 is a deficient number, since it is larger than the sum of its proper divisors (1111351994).

2112131206 is a wasteful number, since it uses less digits than its factorization.

2112131206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2112131206 is about 45957.9286521923. The cubic root of 2112131206 is about 1283.0403001192.

Adding to 2112131206 its reverse (6021312112), we get a palindrome (8133443318).

The spelling of 2112131206 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, two hundred six".