12102212111 has 16 divisors (see below), whose sum is σ = 13696486560. Its totient is φ = 10592440320.

The previous prime is 12102212063. The next prime is 12102212119. The reversal of 12102212111 is 11121220121.

It is not a de Polignac number, because 12102212111 - 2¹⁸ = 12101949967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102212119) 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, 58871 + ... + 166343.

It is an arithmetic number, because the mean of its divisors is an integer number (856030410).

Almost surely, 2^12102212111 is an apocalyptic number.

12102212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12102212111 is a deficient number, since it is larger than the sum of its proper divisors (1594274449).

12102212111 is a wasteful number, since it uses less digits than its factorization.

12102212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107866.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12102212111 its reverse (11121220121), we get a palindrome (23223432232).

The spelling of 12102212111 in words is "twelve billion, one hundred two million, two hundred twelve thousand, one hundred eleven".