212102011221112 has 32 divisors (see below), whose sum is σ = 398719104577200. Its totient is φ = 105776964544000.

The previous prime is 212102011221053. The next prime is 212102011221131. The reversal of 212102011221112 is 211122110201212.

It is a happy number.

It is a super-2 number, since 2×212102011221112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212102011221112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32522787 + ... + 38495917.

Almost surely, 2^{212102011221112} is an apocalyptic number.

It is an amenable number.

212102011221112 is a deficient number, since it is larger than the sum of its proper divisors (186617093356088).

212102011221112 is a wasteful number, since it uses less digits than its factorization.

212102011221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984607 (or 5984603 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212102011221112 its reverse (211122110201212), we get a palindrome (423224121422324).

The spelling of 212102011221112 in words is "two hundred twelve trillion, one hundred two billion, eleven million, two hundred twenty-one thousand, one hundred twelve".