12122121411 has 24 divisors (see below), whose sum is σ = 18764846880. Its totient is φ = 7521123456.

The previous prime is 12122121373. The next prime is 12122121413. The reversal of 12122121411 is 11412122121.

12122121411 is a `hidden beast` number, since 1 + 212 + 21 + 21 + 411 = 666.

It is not a de Polignac number, because 12122121411 - 2¹⁴ = 12122105027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122121413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 783706 + ... + 799023.

It is an arithmetic number, because the mean of its divisors is an integer number (781868620).

Almost surely, 2^12122121411 is an apocalyptic number.

12122121411 is a deficient number, since it is larger than the sum of its proper divisors (6642725469).

12122121411 is a wasteful number, since it uses less digits than its factorization.

12122121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582795 (or 1582792 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

Adding to 12122121411 its reverse (11412122121), we get a palindrome (23534243532).

The spelling of 12122121411 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, four hundred eleven".