12001120212 has 12 divisors (see below), whose sum is σ = 28002613856. Its totient is φ = 4000373400.

The previous prime is 12001120207. The next prime is 12001120213. The reversal of 12001120212 is 21202110021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1000093351 = 12001120212 / (1 + 2 + 0 + 0 + 1 + 1 + 2 + 0 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500046664 + ... + 500046687.

Almost surely, 2^12001120212 is an apocalyptic number.

12001120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001120212 is an abundant number, since it is smaller than the sum of its proper divisors (16001493644).

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

12001120212 is a wasteful number, since it uses less digits than its factorization.

12001120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000093358 (or 1000093356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001120212 its reverse (21202110021), we get a palindrome (33203230233).

The spelling of 12001120212 in words is "twelve billion, one million, one hundred twenty thousand, two hundred twelve".