11331221303211 has 8 divisors (see below), whose sum is σ = 15108361095744. Its totient is φ = 7554114523080.

The previous prime is 11331221303197. The next prime is 11331221303249. The reversal of 11331221303211 is 11230312213311.

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

It is not a de Polignac number, because 11331221303211 - 2³³ = 11322631368619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331221303411) 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, 7440781 + ... + 8833326.

It is an arithmetic number, because the mean of its divisors is an integer number (1888545136968).

Almost surely, 2^{11331221303211} is an apocalyptic number.

11331221303211 is a deficient number, since it is larger than the sum of its proper divisors (3777139792533).

11331221303211 is a wasteful number, since it uses less digits than its factorization.

11331221303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506201.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11331221303211 its reverse (11230312213311), we get a palindrome (22561533516522).

The spelling of 11331221303211 in words is "eleven trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred three thousand, two hundred eleven".