212111222102012 has 24 divisors (see below), whose sum is σ = 372244558963200. Its totient is φ = 105755739865776.

The previous prime is 212111222102009. The next prime is 212111222102023. The reversal of 212111222102012 is 210201222111212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5249078 + ... + 21255005.

It is an arithmetic number, because the mean of its divisors is an integer number (15510189956800).

Almost surely, 2^{212111222102012} is an apocalyptic number.

It is an amenable number.

212111222102012 is a deficient number, since it is larger than the sum of its proper divisors (160133336861188).

212111222102012 is a wasteful number, since it uses less digits than its factorization.

212111222102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26509745 (or 26509743 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212111222102012 its reverse (210201222111212), we get a palindrome (422312444213224).

The spelling of 212111222102012 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred twenty-two million, one hundred two thousand, twelve".