1200212112213 has 12 divisors (see below), whose sum is σ = 1733659464940. Its totient is φ = 800132294016.

The previous prime is 1200212112181. The next prime is 1200212112223. The reversal of 1200212112213 is 3122112120021.

It can be written as a sum of positive squares in 2 ways, for example, as 848981645604 + 351230466609 = 921402^2 + 592647^2 .

It is not a de Polignac number, because 1200212112213 - 2⁵ = 1200212112181 is a prime.

It is a super-2 number, since 2×1200212112213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200212112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129243 + ... + 1554711.

Almost surely, 2^{1200212112213} is an apocalyptic number.

It is an amenable number.

1200212112213 is a deficient number, since it is larger than the sum of its proper divisors (533447352727).

1200212112213 is a wasteful number, since it uses less digits than its factorization.

1200212112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519028 (or 1519025 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1200212112213 its reverse (3122112120021), we get a palindrome (4322324232234).

The spelling of 1200212112213 in words is "one trillion, two hundred billion, two hundred twelve million, one hundred twelve thousand, two hundred thirteen".