111121211002211 has 4 divisors (see below), whose sum is σ = 111121304834232. Its totient is φ = 111121117170192.

The previous prime is 111121211002187. The next prime is 111121211002247. The reversal of 111121211002211 is 112200112121111.

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 111121211002211 - 2⁴⁶ = 40752466824547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111121211002211.

It is not an unprimeable number, because it can be changed into a prime (111121211002511) 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, 45116621 + ... + 47515806.

It is an arithmetic number, because the mean of its divisors is an integer number (27780326208558).

Almost surely, 2^{111121211002211} is an apocalyptic number.

111121211002211 is a deficient number, since it is larger than the sum of its proper divisors (93832021).

111121211002211 is an equidigital number, since it uses as much as digits as its factorization.

111121211002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93832020.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111121211002211 its reverse (112200112121111), we get a palindrome (223321323123322).

The spelling of 111121211002211 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred eleven million, two thousand, two hundred eleven".