1213200210213 has 20 divisors (see below), whose sum is σ = 1812491363628. Its totient is φ = 808719837120.

The previous prime is 1213200210191. The next prime is 1213200210239. The reversal of 1213200210213 is 3120120023121.

1213200210213 is a `hidden beast` number, since 121 + 320 + 0 + 2 + 10 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 738709308324 + 474490901889 = 859482^2 + 688833^2 .

It is not a de Polignac number, because 1213200210213 - 2⁶ = 1213200210149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213200210263) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 82945 + ... + 1559897.

Almost surely, 2^{1213200210213} is an apocalyptic number.

It is an amenable number.

1213200210213 is a deficient number, since it is larger than the sum of its proper divisors (599291153415).

1213200210213 is a wasteful number, since it uses less digits than its factorization.

1213200210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487106 (or 1487097 counting only the distinct ones).

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

Adding to 1213200210213 its reverse (3120120023121), we get a palindrome (4333320233334).

The spelling of 1213200210213 in words is "one trillion, two hundred thirteen billion, two hundred million, two hundred ten thousand, two hundred thirteen".