111221200002 has 32 divisors (see below), whose sum is σ = 244410243840. Its totient is φ = 33460920720.

The previous prime is 111221199979. The next prime is 111221200003. The reversal of 111221200002 is 200002122111.

111221200002 is digitally balanced in base 3, 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 (111221200003) 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 15 ways as a sum of consecutive naturals, for example, 6052588 + ... + 6070935.

It is an arithmetic number, because the mean of its divisors is an integer number (7637820120).

Almost surely, 2^111221200002 is an apocalyptic number.

111221200002 is an abundant number, since it is smaller than the sum of its proper divisors (133189043838).

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

111221200002 is a wasteful number, since it uses less digits than its factorization.

111221200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123678.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111221200002 its reverse (200002122111), we get a palindrome (311223322113).

The spelling of 111221200002 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred thousand, two".