12002131212 has 24 divisors (see below), whose sum is σ = 28007347200. Its totient is φ = 4000371216.

The previous prime is 12002131201. The next prime is 12002131217. The reversal of 12002131212 is 21213120021.

It is a junction number, because it is equal to n+sod(n) for n = 12002131191 and 12002131200.

It is not an unprimeable number, because it can be changed into a prime (12002131217) 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, 134589 + ... + 205227.

It is an arithmetic number, because the mean of its divisors is an integer number (1166972800).

Almost surely, 2^12002131212 is an apocalyptic number.

12002131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12002131212 is an abundant number, since it is smaller than the sum of its proper divisors (16005215988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002131212 is a wasteful number, since it uses less digits than its factorization.

12002131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84805 (or 84803 counting only the distinct ones).

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

Adding to 12002131212 its reverse (21213120021), we get a palindrome (33215251233).

The spelling of 12002131212 in words is "twelve billion, two million, one hundred thirty-one thousand, two hundred twelve".