111221321002 has 32 divisors (see below), whose sum is σ = 183187298304. Its totient is φ = 50225971200.

The previous prime is 111221320981. The next prime is 111221321051. The reversal of 111221321002 is 200123122111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139802 + ... + 2191162.

It is an arithmetic number, because the mean of its divisors is an integer number (5724603072).

Almost surely, 2^111221321002 is an apocalyptic number.

111221321002 is a deficient number, since it is larger than the sum of its proper divisors (71965977302).

111221321002 is a wasteful number, since it uses less digits than its factorization.

111221321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52014.

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

Adding to 111221321002 its reverse (200123122111), we get a palindrome (311344443113).

The spelling of 111221321002 in words is "one hundred eleven billion, two hundred twenty-one million, three hundred twenty-one thousand, two".