111221101232 has 20 divisors (see below), whose sum is σ = 219556751040. Its totient is φ = 54561294528.

The previous prime is 111221101213. The next prime is 111221101283. The reversal of 111221101232 is 232101122111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111221101232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65577632 + ... + 65579327.

It is an arithmetic number, because the mean of its divisors is an integer number (10977837552).

Almost surely, 2^111221101232 is an apocalyptic number.

It is an amenable number.

111221101232 is a deficient number, since it is larger than the sum of its proper divisors (108335649808).

111221101232 is a wasteful number, since it uses less digits than its factorization.

111221101232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131157020 (or 131157014 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111221101232 its reverse (232101122111), we get a palindrome (343322223343).

The spelling of 111221101232 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred one thousand, two hundred thirty-two".