212001122000112 has 20 divisors (see below), whose sum is σ = 547669565167080. Its totient is φ = 70667040666688.

The previous prime is 212001122000077. The next prime is 212001122000113. The reversal of 212001122000112 is 211000221100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001122000091 and 212001122000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001122000113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208345020787 + ... + 2208345020882.

It is an arithmetic number, because the mean of its divisors is an integer number (27383478258354).

Almost surely, 2^{212001122000112} is an apocalyptic number.

It is an amenable number.

212001122000112 is an abundant number, since it is smaller than the sum of its proper divisors (335668443166968).

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

212001122000112 is a wasteful number, since it uses less digits than its factorization.

212001122000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416690041680 (or 4416690041674 counting only the distinct ones).

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

Adding to 212001122000112 its reverse (211000221100212), we get a palindrome (423001343100324).

The spelling of 212001122000112 in words is "two hundred twelve trillion, one billion, one hundred twenty-two million, one hundred twelve", and thus it is an aban number.