12012212201 has 24 divisors (see below), whose sum is σ = 13655631360. Its totient is φ = 10552164480.

The previous prime is 12012212141. The next prime is 12012212209. The reversal of 12012212201 is 10221221021.

It is not a de Polignac number, because 12012212201 - 2⁶ = 12012212137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012212209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435905 + ... + 462641.

It is an arithmetic number, because the mean of its divisors is an integer number (568984640).

Almost surely, 2^12012212201 is an apocalyptic number.

12012212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012212201 is a deficient number, since it is larger than the sum of its proper divisors (1643419159).

12012212201 is a wasteful number, since it uses less digits than its factorization.

12012212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26885 (or 26874 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012212201 its reverse (10221221021), we get a palindrome (22233433222).

The spelling of 12012212201 in words is "twelve billion, twelve million, two hundred twelve thousand, two hundred one".