12321202011212 has 12 divisors (see below), whose sum is σ = 21563333022840. Its totient is φ = 6160249718976.

The previous prime is 12321202011211. The next prime is 12321202011241. The reversal of 12321202011212 is 21211020212321.

12321202011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12321202011211) 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, 87742733 + ... + 87883044.

It is an arithmetic number, because the mean of its divisors is an integer number (1796944418570).

Almost surely, 2^{12321202011212} is an apocalyptic number.

It is an amenable number.

12321202011212 is a deficient number, since it is larger than the sum of its proper divisors (9242131011628).

12321202011212 is a wasteful number, since it uses less digits than its factorization.

12321202011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175643320 (or 175643318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12321202011212 its reverse (21211020212321), we get a palindrome (33532222223533).

The spelling of 12321202011212 in words is "twelve trillion, three hundred twenty-one billion, two hundred two million, eleven thousand, two hundred twelve".