11321222021988 has 24 divisors (see below), whose sum is σ = 26417634358080. Its totient is φ = 3773533582560.

The previous prime is 11321222021981. The next prime is 11321222022029. The reversal of 11321222021988 is 88912022212311.

It is a super-2 number, since 2×11321222021988² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11321222021981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25658568 + ... + 26096063.

It is an arithmetic number, because the mean of its divisors is an integer number (1100734764920).

Almost surely, 2^{11321222021988} is an apocalyptic number.

It is an amenable number.

11321222021988 is an abundant number, since it is smaller than the sum of its proper divisors (15096412336092).

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

11321222021988 is a wasteful number, since it uses less digits than its factorization.

11321222021988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51772867 (or 51772865 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 11321222021988 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, nine hundred eighty-eight".