11221105072 has 20 divisors (see below), whose sum is σ = 21743586000. Its totient is φ = 5609857088.

The previous prime is 11221105009. The next prime is 11221105079. The reversal of 11221105072 is 27050112211.

11221105072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11221105079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105018 + ... + 182950.

It is an arithmetic number, because the mean of its divisors is an integer number (1087179300).

Almost surely, 2^11221105072 is an apocalyptic number.

It is an amenable number.

11221105072 is a deficient number, since it is larger than the sum of its proper divisors (10522480928).

11221105072 is an equidigital number, since it uses as much as digits as its factorization.

11221105072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86940 (or 86934 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 11221105072 its reverse (27050112211), we get a palindrome (38271217283).

The spelling of 11221105072 in words is "eleven billion, two hundred twenty-one million, one hundred five thousand, seventy-two".