121213200213 has 12 divisors (see below), whose sum is σ = 200097981408. Its totient is φ = 69264685800.

The previous prime is 121213200203. The next prime is 121213200221. The reversal of 121213200213 is 312002312121.

121213200213 is a `hidden beast` number, since 12 + 121 + 320 + 0 + 213 = 666.

It is not a de Polignac number, because 121213200213 - 2⁶ = 121213200149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213200203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 962009463 + ... + 962009588.

It is an arithmetic number, because the mean of its divisors is an integer number (16674831784).

Almost surely, 2^121213200213 is an apocalyptic number.

It is an amenable number.

121213200213 is a deficient number, since it is larger than the sum of its proper divisors (78884781195).

121213200213 is a wasteful number, since it uses less digits than its factorization.

121213200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924019064 (or 1924019061 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121213200213 its reverse (312002312121), we get a palindrome (433215512334).

The spelling of 121213200213 in words is "one hundred twenty-one billion, two hundred thirteen million, two hundred thousand, two hundred thirteen".