11321221333320 has 96 divisors (see below), whose sum is σ = 36797306340600. Its totient is φ = 3018718550016.

The previous prime is 11321221333291. The next prime is 11321221333333. The reversal of 11321221333320 is 2333312212311.

11321221333320 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 1 + 2 + 2 + 1 + 333 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5817251962404 + 5503969370916 = 2411898^2 + 2346054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2564304 + ... + 5405376.

Almost surely, 2^{11321221333320} is an apocalyptic number.

11321221333320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321221333320 is an abundant number, since it is smaller than the sum of its proper divisors (25476085007280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11321221333320 is a wasteful number, since it uses less digits than its factorization.

11321221333320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852159 (or 2852152 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 11321221333320 its reverse (2333312212311), we get a palindrome (13654533545631).

The spelling of 11321221333320 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-three thousand, three hundred twenty".