11331332113221 has 24 divisors (see below), whose sum is σ = 16802899940736. Its totient is φ = 7354054128960.

The previous prime is 11331332113163. The next prime is 11331332113333. The reversal of 11331332113221 is 12231123313311.

11331332113221 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 1 + 332 + 1 + 1 + 322 + 1 = 666.

It is not a de Polignac number, because 11331332113221 - 2¹⁷ = 11331331982149 is a prime.

It is a super-2 number, since 2×11331332113221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331332193221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32991375 + ... + 33333068.

It is an arithmetic number, because the mean of its divisors is an integer number (700120830864).

Almost surely, 2^{11331332113221} is an apocalyptic number.

It is an amenable number.

11331332113221 is a deficient number, since it is larger than the sum of its proper divisors (5471567827515).

11331332113221 is a wasteful number, since it uses less digits than its factorization.

11331332113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66324953 (or 66324950 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 11331332113221 its reverse (12231123313311), we get a palindrome (23562455426532).

The spelling of 11331332113221 in words is "eleven trillion, three hundred thirty-one billion, three hundred thirty-two million, one hundred thirteen thousand, two hundred twenty-one".