12212202112111 has 16 divisors (see below), whose sum is σ = 12653952161760. Its totient is φ = 11771830949760.

The previous prime is 12212202111979. The next prime is 12212202112139. The reversal of 12212202112111 is 11121120221221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12212202112111 - 2⁴¹ = 10013178856559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212202110111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439701021 + ... + 439728793.

It is an arithmetic number, because the mean of its divisors is an integer number (790872010110).

Almost surely, 2^{12212202112111} is an apocalyptic number.

12212202112111 is a deficient number, since it is larger than the sum of its proper divisors (441750049649).

12212202112111 is a wasteful number, since it uses less digits than its factorization.

12212202112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52026.

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

Adding to 12212202112111 its reverse (11121120221221), we get a palindrome (23333322333332).

The spelling of 12212202112111 in words is "twelve trillion, two hundred twelve billion, two hundred two million, one hundred twelve thousand, one hundred eleven".