111021210011211 has 8 divisors (see below), whose sum is σ = 148028333091840. Its totient is φ = 74014113469032.

The previous prime is 111021210011149. The next prime is 111021210011227. The reversal of 111021210011211 is 112110012120111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111021210011211 - 2⁷ = 111021210011083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111021210081211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7319130 + ... + 16601568.

It is an arithmetic number, because the mean of its divisors is an integer number (18503541636480).

Almost surely, 2^{111021210011211} is an apocalyptic number.

111021210011211 is a deficient number, since it is larger than the sum of its proper divisors (37007123080629).

111021210011211 is an equidigital number, since it uses as much as digits as its factorization.

111021210011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269225.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111021210011211 its reverse (112110012120111), we get a palindrome (223131222131322).

The spelling of 111021210011211 in words is "one hundred eleven trillion, twenty-one billion, two hundred ten million, eleven thousand, two hundred eleven".