12121140411 has 72 divisors (see below), whose sum is σ = 18775345680. Its totient is φ = 7530163200.

The previous prime is 12121140401. The next prime is 12121140413. The reversal of 12121140411 is 11404112121.

12121140411 is a `hidden beast` number, since 1 + 2 + 1 + 211 + 40 + 411 = 666.

It is not a de Polignac number, because 12121140411 - 2¹⁵ = 12121107643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121140413) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43135591 + ... + 43135871.

It is an arithmetic number, because the mean of its divisors is an integer number (260768690).

Almost surely, 2^12121140411 is an apocalyptic number.

12121140411 is a deficient number, since it is larger than the sum of its proper divisors (6654205269).

12121140411 is a wasteful number, since it uses less digits than its factorization.

12121140411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 493 counting only the distinct ones).

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

Adding to 12121140411 its reverse (11404112121), we get a palindrome (23525252532).

The spelling of 12121140411 in words is "twelve billion, one hundred twenty-one million, one hundred forty thousand, four hundred eleven".