12212112102111 has 36 divisors (see below), whose sum is σ = 18111199509000. Its totient is φ = 7928653608000.

The previous prime is 12212112102107. The next prime is 12212112102121. The reversal of 12212112102111 is 11120121121221.

It is a happy number.

12212112102111 is a `hidden beast` number, since 1 + 221 + 21 + 1 + 210 + 211 + 1 = 666.

It is not a de Polignac number, because 12212112102111 - 2² = 12212112102107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212112102121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1577140 + ... + 5187638.

It is an arithmetic number, because the mean of its divisors is an integer number (503088875250).

Almost surely, 2^{12212112102111} is an apocalyptic number.

12212112102111 is a deficient number, since it is larger than the sum of its proper divisors (5899087406889).

12212112102111 is a wasteful number, since it uses less digits than its factorization.

12212112102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610728 (or 3610664 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12212112102111 its reverse (11120121121221), we get a palindrome (23332233223332).

The spelling of 12212112102111 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, one hundred two thousand, one hundred eleven".