11331220221213 has 8 divisors (see below), whose sum is σ = 15321086496576. Its totient is φ = 7447750380000.

The previous prime is 11331220221157. The next prime is 11331220221229. The reversal of 11331220221213 is 31212202213311.

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

It is not a de Polignac number, because 11331220221213 - 2⁹ = 11331220220701 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 (11331220221263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26599108288 + ... + 26599108713.

It is an arithmetic number, because the mean of its divisors is an integer number (1915135812072).

Almost surely, 2^{11331220221213} is an apocalyptic number.

It is an amenable number.

11331220221213 is a deficient number, since it is larger than the sum of its proper divisors (3989866275363).

11331220221213 is an equidigital number, since it uses as much as digits as its factorization.

11331220221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53198217075.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11331220221213 its reverse (31212202213311), we get a palindrome (42543422434524).

The spelling of 11331220221213 in words is "eleven trillion, three hundred thirty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred thirteen".