2012101221012 has 12 divisors (see below), whose sum is σ = 4694902849056. Its totient is φ = 670700407000.

The previous prime is 2012101220989. The next prime is 2012101221061. The reversal of 2012101221012 is 2101221012102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2012101220982 and 2012101221000.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 83837550864 + ... + 83837550887.

It is an arithmetic number, because the mean of its divisors is an integer number (391241904088).

Almost surely, 2^{2012101221012} is an apocalyptic number.

It is an amenable number.

2012101221012 is an abundant number, since it is smaller than the sum of its proper divisors (2682801628044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012101221012 is a wasteful number, since it uses less digits than its factorization.

2012101221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167675101758 (or 167675101756 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2012101221012 its reverse (2101221012102), we get a palindrome (4113322233114).

The spelling of 2012101221012 in words is "two trillion, twelve billion, one hundred one million, two hundred twenty-one thousand, twelve".