1121201021213 has 8 divisors (see below), whose sum is σ = 1379939718528. Its totient is φ = 887104104624.

The previous prime is 1121201021177. The next prime is 1121201021231. The reversal of 1121201021213 is 3121201021211.

It is a happy number.

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 1121201021213 - 2¹⁴ = 1121201004829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121201021191 and 1121201021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201081213) 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, 6160445081 + ... + 6160445262.

It is an arithmetic number, because the mean of its divisors is an integer number (172492464816).

Almost surely, 2^{1121201021213} is an apocalyptic number.

1121201021213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121201021213 is a deficient number, since it is larger than the sum of its proper divisors (258738697315).

1121201021213 is a wasteful number, since it uses less digits than its factorization.

1121201021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320890363.

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

Adding to 1121201021213 its reverse (3121201021211), we get a palindrome (4242402042424).

The spelling of 1121201021213 in words is "one trillion, one hundred twenty-one billion, two hundred one million, twenty-one thousand, two hundred thirteen".