2012120422 has 12 divisors (see below), whose sum is σ = 3268207980. Its totient is φ = 928670808.

The previous prime is 2012120417. The next prime is 2012120423. The reversal of 2012120422 is 2240212102.

It is a junction number, because it is equal to n+sod(n) for n = 2012120396 and 2012120405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012120423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2976172 + ... + 2976847.

It is an arithmetic number, because the mean of its divisors is an integer number (272350665).

Almost surely, 2^2012120422 is an apocalyptic number.

2012120422 is a deficient number, since it is larger than the sum of its proper divisors (1256087558).

2012120422 is a wasteful number, since it uses less digits than its factorization.

2012120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953047 (or 5953034 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2012120422 is about 44856.6653018255. The cubic root of 2012120422 is about 1262.4610549304.

Adding to 2012120422 its reverse (2240212102), we get a palindrome (4252332524).

The spelling of 2012120422 in words is "two billion, twelve million, one hundred twenty thousand, four hundred twenty-two".