211112102221212 has 48 divisors (see below), whose sum is σ = 504615698625024. Its totient is φ = 68653487280000.

The previous prime is 211112102221187. The next prime is 211112102221249. The reversal of 211112102221212 is 212122201211112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37492287 + ... + 42753897.

It is an arithmetic number, because the mean of its divisors is an integer number (10512827054688).

Almost surely, 2^{211112102221212} is an apocalyptic number.

It is an amenable number.

211112102221212 is an abundant number, since it is smaller than the sum of its proper divisors (293503596403812).

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

211112102221212 is a wasteful number, since it uses less digits than its factorization.

211112102221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5343210 (or 5343208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211112102221212 its reverse (212122201211112), we get a palindrome (423234303432324).

The spelling of 211112102221212 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred two million, two hundred twenty-one thousand, two hundred twelve".