1121200211213 has 8 divisors (see below), whose sum is σ = 1125330838008. Its totient is φ = 1117073078784.

The previous prime is 1121200211203. The next prime is 1121200211273. The reversal of 1121200211213 is 3121120021211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17696182729 + 1103504028484 = 133027^2 + 1050478^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1121200211213 - 2⁴⁰ = 21688583437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121200211191 and 1121200211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121200211203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229820 + ... + 1514997.

It is an arithmetic number, because the mean of its divisors is an integer number (140666354751).

Almost surely, 2^{1121200211213} is an apocalyptic number.

It is an amenable number.

1121200211213 is a deficient number, since it is larger than the sum of its proper divisors (4130626795).

1121200211213 is a wasteful number, since it uses less digits than its factorization.

1121200211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747183.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121200211213 its reverse (3121120021211), we get a palindrome (4242320232424).

The spelling of 1121200211213 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred eleven thousand, two hundred thirteen".