11852821222 has 32 divisors (see below), whose sum is σ = 19694632320. Its totient is φ = 5304813120.

The previous prime is 11852821207. The next prime is 11852821223. The reversal of 11852821222 is 22212825811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11852821223) 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 15 ways as a sum of consecutive naturals, for example, 988153 + ... + 1000075.

It is an arithmetic number, because the mean of its divisors is an integer number (615457260).

Almost surely, 2^11852821222 is an apocalyptic number.

11852821222 is a deficient number, since it is larger than the sum of its proper divisors (7841811098).

11852821222 is a wasteful number, since it uses less digits than its factorization.

11852821222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12628.

The product of its digits is 10240, while the sum is 34.

The spelling of 11852821222 in words is "eleven billion, eight hundred fifty-two million, eight hundred twenty-one thousand, two hundred twenty-two".