11321222021121 has 8 divisors (see below), whose sum is σ = 15153697959264. Its totient is φ = 7518113715200.

The previous prime is 11321222021089. The next prime is 11321222021171. The reversal of 11321222021121 is 12112022212311.

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 11321222021121 - 2⁵ = 11321222021089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11321222021171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7341907155 + ... + 7341908696.

It is an arithmetic number, because the mean of its divisors is an integer number (1894212244908).

Almost surely, 2^{11321222021121} is an apocalyptic number.

It is an amenable number.

11321222021121 is a deficient number, since it is larger than the sum of its proper divisors (3832475938143).

11321222021121 is a wasteful number, since it uses less digits than its factorization.

11321222021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14683816111.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11321222021121 its reverse (12112022212311), we get a palindrome (23433244233432).

The spelling of 11321222021121 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-one".