2012021221112 has 32 divisors (see below), whose sum is σ = 4311902431200. Its totient is φ = 862209131904.

The previous prime is 2012021221081. The next prime is 2012021221123. The reversal of 2012021221112 is 2111221202102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214687 + ... + 2345102.

It is an arithmetic number, because the mean of its divisors is an integer number (134746950975).

Almost surely, 2^{2012021221112} is an apocalyptic number.

It is an amenable number.

2012021221112 is an abundant number, since it is smaller than the sum of its proper divisors (2299881210088).

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

2012021221112 is a wasteful number, since it uses less digits than its factorization.

2012021221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569895 (or 3569891 counting only the distinct ones).

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

Adding to 2012021221112 its reverse (2111221202102), we get a palindrome (4123242423214).

The spelling of 2012021221112 in words is "two trillion, twelve billion, twenty-one million, two hundred twenty-one thousand, one hundred twelve".