20112012021212 has 12 divisors (see below), whose sum is σ = 35197496495280. Its totient is φ = 10055584451136.

The previous prime is 20112012021209. The next prime is 20112012021263. The reversal of 20112012021212 is 21212021021102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105282512 + ... + 105473367.

It is an arithmetic number, because the mean of its divisors is an integer number (2933124707940).

Almost surely, 2^{20112012021212} is an apocalyptic number.

It is an amenable number.

20112012021212 is a deficient number, since it is larger than the sum of its proper divisors (15085484474068).

20112012021212 is a wasteful number, since it uses less digits than its factorization.

20112012021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210779740 (or 210779738 counting only the distinct ones).

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

Adding to 20112012021212 its reverse (21212021021102), we get a palindrome (41324033042314).

The spelling of 20112012021212 in words is "twenty trillion, one hundred twelve billion, twelve million, twenty-one thousand, two hundred twelve".