12042240212 has 12 divisors (see below), whose sum is σ = 21267259860. Its totient is φ = 5965880256.

The previous prime is 12042240209. The next prime is 12042240229. The reversal of 12042240212 is 21204224021.

It can be written as a sum of positive squares in 2 ways, for example, as 6893316676 + 5148923536 = 83026^2 + 71756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13809473 + ... + 13810344.

It is an arithmetic number, because the mean of its divisors is an integer number (1772271655).

Almost surely, 2^12042240212 is an apocalyptic number.

It is an amenable number.

12042240212 is a deficient number, since it is larger than the sum of its proper divisors (9225019648).

12042240212 is a wasteful number, since it uses less digits than its factorization.

12042240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27619930 (or 27619928 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12042240212 its reverse (21204224021), we get a palindrome (33246464233).

It can be divided in two parts, 1204224021 and 2, that multiplied together give a palindrome (2408448042).

The spelling of 12042240212 in words is "twelve billion, forty-two million, two hundred forty thousand, two hundred twelve".