2012211982 has 16 divisors (see below), whose sum is σ = 3309264000. Its totient is φ = 910043640.

The previous prime is 2012211977. The next prime is 2012211989. The reversal of 2012211982 is 2891122102.

It is a self number, because there is not a number n which added to its sum of digits gives 2012211982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012211989) 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, 225432 + ... + 234187.

It is an arithmetic number, because the mean of its divisors is an integer number (206829000).

Almost surely, 2^2012211982 is an apocalyptic number.

2012211982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2012211982 is a deficient number, since it is larger than the sum of its proper divisors (1297052018).

2012211982 is a wasteful number, since it uses less digits than its factorization.

2012211982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459831.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2012211982 is about 44857.6858743293. The cubic root of 2012211982 is about 1262.4802037480.

It can be divided in two parts, 201221 and 1982, that added together give a triangular number (203203 = T₆₃₇).

The spelling of 2012211982 in words is "two billion, twelve million, two hundred eleven thousand, nine hundred eighty-two".