12002212131 has 32 divisors (see below), whose sum is σ = 19720124928. Its totient is φ = 6323063040.

The previous prime is 12002212129. The next prime is 12002212147. The reversal of 12002212131 is 13121220021.

12002212131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12002212131 - 2¹ = 12002212129 is a prime.

It is a super-2 number, since 2×12002212131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12002212131.

It is not an unprimeable number, because it can be changed into a prime (12002212151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199191 + ... + 252351.

It is an arithmetic number, because the mean of its divisors is an integer number (616253904).

Almost surely, 2^12002212131 is an apocalyptic number.

12002212131 is a deficient number, since it is larger than the sum of its proper divisors (7717912797).

12002212131 is a wasteful number, since it uses less digits than its factorization.

12002212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54011.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12002212131 its reverse (13121220021), we get a palindrome (25123432152).

The spelling of 12002212131 in words is "twelve billion, two million, two hundred twelve thousand, one hundred thirty-one".