20120212101112 has 32 divisors (see below), whose sum is σ = 38494559980800. Its totient is φ = 9856940277600.

The previous prime is 20120212101107. The next prime is 20120212101203. The reversal of 20120212101112 is 21110121202102.

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, 121427814 + ... + 121593397.

It is an arithmetic number, because the mean of its divisors is an integer number (1202954999400).

Almost surely, 2^{20120212101112} is an apocalyptic number.

It is an amenable number.

20120212101112 is a deficient number, since it is larger than the sum of its proper divisors (18374347879688).

20120212101112 is a wasteful number, since it uses less digits than its factorization.

20120212101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243021427 (or 243021423 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20120212101112 its reverse (21110121202102), we get a palindrome (41230333303214).

The spelling of 20120212101112 in words is "twenty trillion, one hundred twenty billion, two hundred twelve million, one hundred one thousand, one hundred twelve".