12102122122111 has 16 divisors (see below), whose sum is σ = 13839475507200. Its totient is φ = 10366890327360.

The previous prime is 12102122122109. The next prime is 12102122122117. The reversal of 12102122122111 is 11122122120121.

It is a happy number.

It is not a de Polignac number, because 12102122122111 - 2¹ = 12102122122109 is a prime.

It is a super-2 number, since 2×12102122122111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102122122117) 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, 80257915 + ... + 80408563.

It is an arithmetic number, because the mean of its divisors is an integer number (864967219200).

Almost surely, 2^{12102122122111} is an apocalyptic number.

12102122122111 is a deficient number, since it is larger than the sum of its proper divisors (1737353385089).

12102122122111 is a wasteful number, since it uses less digits than its factorization.

12102122122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157614.

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

Adding to 12102122122111 its reverse (11122122120121), we get a palindrome (23224244242232).

The spelling of 12102122122111 in words is "twelve trillion, one hundred two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".