111221220002 has 16 divisors (see below), whose sum is σ = 176665642272. Its totient is φ = 52333419840.

The previous prime is 111221219983. The next prime is 111221220013. The reversal of 111221220002 is 200022122111.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122693 + ... + 487335.

It is an arithmetic number, because the mean of its divisors is an integer number (11041602642).

Almost surely, 2^111221220002 is an apocalyptic number.

111221220002 is a deficient number, since it is larger than the sum of its proper divisors (65444422270).

111221220002 is a wasteful number, since it uses less digits than its factorization.

111221220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373633.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111221220002 its reverse (200022122111), we get a palindrome (311243342113).

The spelling of 111221220002 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, two".