12161122413 has 16 divisors (see below), whose sum is σ = 17752777536. Its totient is φ = 7343763840.

The previous prime is 12161122411. The next prime is 12161122423. The reversal of 12161122413 is 31422116121.

It is not a de Polignac number, because 12161122413 - 2¹ = 12161122411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161122411) 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, 656056 + ... + 674337.

It is an arithmetic number, because the mean of its divisors is an integer number (1109548596).

Almost surely, 2^12161122413 is an apocalyptic number.

It is an amenable number.

12161122413 is a deficient number, since it is larger than the sum of its proper divisors (5591655123).

12161122413 is a wasteful number, since it uses less digits than its factorization.

12161122413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330684.

The product of its digits is 576, while the sum is 24.

Adding to 12161122413 its reverse (31422116121), we get a palindrome (43583238534).

The spelling of 12161122413 in words is "twelve billion, one hundred sixty-one million, one hundred twenty-two thousand, four hundred thirteen".