121210011212 has 12 divisors (see below), whose sum is σ = 212191217280. Its totient is φ = 60583949136.

The previous prime is 121210011163. The next prime is 121210011227. The reversal of 121210011212 is 212110012121.

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, 5251163 + ... + 5274194.

It is an arithmetic number, because the mean of its divisors is an integer number (17682601440).

Almost surely, 2^121210011212 is an apocalyptic number.

It is an amenable number.

121210011212 is a deficient number, since it is larger than the sum of its proper divisors (90981206068).

121210011212 is a wasteful number, since it uses less digits than its factorization.

121210011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528240 (or 10528238 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121210011212 its reverse (212110012121), we get a palindrome (333320023333).

Subtracting 121210011212 from its reverse (212110012121), we obtain a palindrome (90900000909).

The spelling of 121210011212 in words is "one hundred twenty-one billion, two hundred ten million, eleven thousand, two hundred twelve".