12001211210 has 8 divisors (see below), whose sum is σ = 21602180196. Its totient is φ = 4800484480.

The previous prime is 12001211207. The next prime is 12001211227. The reversal of 12001211210 is 1211210021.

It can be written as a sum of positive squares in 2 ways, for example, as 10443409249 + 1557801961 = 102193^2 + 39469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12001211191 and 12001211200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600060551 + ... + 600060570.

Almost surely, 2^12001211210 is an apocalyptic number.

12001211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001211210 is a deficient number, since it is larger than the sum of its proper divisors (9600968986).

12001211210 is a wasteful number, since it uses less digits than its factorization.

12001211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200121128.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001211210 its reverse (1211210021), we get a palindrome (13212421231).

The spelling of 12001211210 in words is "twelve billion, one million, two hundred eleven thousand, two hundred ten".