212111021100112 has 20 divisors (see below), whose sum is σ = 410970391720416. Its totient is φ = 106054145817440.

The previous prime is 212111021100079. The next prime is 212111021100151. The reversal of 212111021100112 is 211001120111212.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 84012964 + ... + 86500867.

Almost surely, 2^{212111021100112} is an apocalyptic number.

It is an amenable number.

212111021100112 is a deficient number, since it is larger than the sum of its proper divisors (198859370620304).

212111021100112 is a wasteful number, since it uses less digits than its factorization.

212111021100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170591586 (or 170591580 counting only the distinct ones).

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

Adding to 212111021100112 its reverse (211001120111212), we get a palindrome (423112141211324).

The spelling of 212111021100112 in words is "two hundred twelve trillion, one hundred eleven billion, twenty-one million, one hundred thousand, one hundred twelve".