11112021232 has 20 divisors (see below), whose sum is σ = 23185660120. Its totient is φ = 5128625088.

The previous prime is 11112021227. The next prime is 11112021233. The reversal of 11112021232 is 23212021111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112021233) 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 3 ways as a sum of consecutive naturals, for example, 26711382 + ... + 26711797.

It is an arithmetic number, because the mean of its divisors is an integer number (1159283006).

Almost surely, 2^11112021232 is an apocalyptic number.

It is an amenable number.

11112021232 is an abundant number, since it is smaller than the sum of its proper divisors (12073638888).

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

11112021232 is a wasteful number, since it uses less digits than its factorization.

11112021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53423200 (or 53423194 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11112021232 its reverse (23212021111), we get a palindrome (34324042343).

The spelling of 11112021232 in words is "eleven billion, one hundred twelve million, twenty-one thousand, two hundred thirty-two".