12012204131 has 8 divisors (see below), whose sum is σ = 12720550464. Its totient is φ = 11304051840.

The previous prime is 12012204121. The next prime is 12012204151. The reversal of 12012204131 is 13140221021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012204131 - 2¹⁰ = 12012203107 is a prime.

It is a super-2 number, since 2×12012204131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012204101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90326 + ... + 179396.

It is an arithmetic number, because the mean of its divisors is an integer number (1590068808).

Almost surely, 2^12012204131 is an apocalyptic number.

12012204131 is a deficient number, since it is larger than the sum of its proper divisors (708346333).

12012204131 is an equidigital number, since it uses as much as digits as its factorization.

12012204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97021.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12012204131 its reverse (13140221021), we get a palindrome (25152425152).

The spelling of 12012204131 in words is "twelve billion, twelve million, two hundred four thousand, one hundred thirty-one".