2012120212112 has 20 divisors (see below), whose sum is σ = 3972039193980. Its totient is φ = 987077839488.

The previous prime is 2012120212097. The next prime is 2012120212117. The reversal of 2012120212112 is 2112120212102.

It can be written as a sum of positive squares in 2 ways, for example, as 1750974683536 + 261145528576 = 1323244^2 + 511024^2 .

It is not an unprimeable number, because it can be changed into a prime (2012120212117) 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, 1186390787 + ... + 1186392482.

It is an arithmetic number, because the mean of its divisors is an integer number (198601959699).

Almost surely, 2^{2012120212112} is an apocalyptic number.

It is an amenable number.

2012120212112 is a deficient number, since it is larger than the sum of its proper divisors (1959918981868).

2012120212112 is a wasteful number, since it uses less digits than its factorization.

2012120212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372783330 (or 2372783324 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012120212112 its reverse (2112120212102), we get a palindrome (4124240424214).

The spelling of 2012120212112 in words is "two trillion, twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred twelve".