111001221002211 has 4 divisors (see below), whose sum is σ = 148001628002952. Its totient is φ = 74000814001472.

The previous prime is 111001221002131. The next prime is 111001221002213. The reversal of 111001221002211 is 112200122100111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111001221002211 - 2⁷ = 111001221002083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111001221002213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18500203500366 + ... + 18500203500371.

It is an arithmetic number, because the mean of its divisors is an integer number (37000407000738).

Almost surely, 2^{111001221002211} is an apocalyptic number.

111001221002211 is a deficient number, since it is larger than the sum of its proper divisors (37000407000741).

111001221002211 is an equidigital number, since it uses as much as digits as its factorization.

111001221002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37000407000740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111001221002211 its reverse (112200122100111), we get a palindrome (223201343102322).

The spelling of 111001221002211 in words is "one hundred eleven trillion, one billion, two hundred twenty-one million, two thousand, two hundred eleven".