111221100002 has 8 divisors (see below), whose sum is σ = 167296363200. Its totient is φ = 55455645604.

The previous prime is 111221099993. The next prime is 111221100017. The reversal of 111221100002 is 200001122111.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 77451302 + ... + 77452737.

It is an arithmetic number, because the mean of its divisors is an integer number (20912045400).

Almost surely, 2^111221100002 is an apocalyptic number.

111221100002 is a deficient number, since it is larger than the sum of its proper divisors (56075263198).

111221100002 is a wasteful number, since it uses less digits than its factorization.

111221100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154904400.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111221100002 its reverse (200001122111), we get a palindrome (311222222113).

The spelling of 111221100002 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred thousand, two".