211102120212 has 12 divisors (see below), whose sum is σ = 492571613856. Its totient is φ = 70367373400.

The previous prime is 211102120211. The next prime is 211102120247. The reversal of 211102120212 is 212021201112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 211102120191 and 211102120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795921664 + ... + 8795921687.

It is an arithmetic number, because the mean of its divisors is an integer number (41047634488).

Almost surely, 2^211102120212 is an apocalyptic number.

It is an amenable number.

211102120212 is an abundant number, since it is smaller than the sum of its proper divisors (281469493644).

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

211102120212 is a wasteful number, since it uses less digits than its factorization.

211102120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591843358 (or 17591843356 counting only the distinct ones).

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

Adding to 211102120212 its reverse (212021201112), we get a palindrome (423123321324).

The spelling of 211102120212 in words is "two hundred eleven billion, one hundred two million, one hundred twenty thousand, two hundred twelve".