111221102222002 has 16 divisors (see below), whose sum is σ = 167439703303224. Its totient is φ = 55407901696000.

The previous prime is 111221102221919. The next prime is 111221102222063. The reversal of 111221102222002 is 200222201122111.

It can be written as a sum of positive squares in 4 ways, for example, as 66334036774041 + 44887065447961 = 8144571^2 + 6699781^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1906399 + ... + 15035842.

Almost surely, 2^{111221102222002} is an apocalyptic number.

111221102222002 is a deficient number, since it is larger than the sum of its proper divisors (56218601081222).

111221102222002 is a wasteful number, since it uses less digits than its factorization.

111221102222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16954205.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111221102222002 its reverse (200222201122111), we get a palindrome (311443303344113).

The spelling of 111221102222002 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty-two thousand, two".