111121222002011 has 4 divisors (see below), whose sum is σ = 119669008309872. Its totient is φ = 102573435694152.

The previous prime is 111121222001971. The next prime is 111121222002023. The reversal of 111121222002011 is 110200222121111.

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 111121222002011 - 2¹⁸ = 111121221739867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121222002061) 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, 4273893153911 + ... + 4273893153936.

It is an arithmetic number, because the mean of its divisors is an integer number (29917252077468).

Almost surely, 2^{111121222002011} is an apocalyptic number.

111121222002011 is a deficient number, since it is larger than the sum of its proper divisors (8547786307861).

111121222002011 is an equidigital number, since it uses as much as digits as its factorization.

111121222002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547786307860.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111121222002011 its reverse (110200222121111), we get a palindrome (221321444123122).

The spelling of 111121222002011 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, two thousand, eleven".