111120012211211 has 4 divisors (see below), whose sum is σ = 111121246652592. Its totient is φ = 111118777769832.

The previous prime is 111120012211147. The next prime is 111120012211217. The reversal of 111120012211211 is 112112210021111.

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 111120012211211 - 2⁶ = 111120012211147 is a prime.

It is a super-2 number, since 2×111120012211211² (a number of 29 digits) contains 22 as substring.

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 111120012211211.

It is not an unprimeable number, because it can be changed into a prime (111120012211217) 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, 617085656 + ... + 617265701.

It is an arithmetic number, because the mean of its divisors is an integer number (27780311663148).

Almost surely, 2^{111120012211211} is an apocalyptic number.

111120012211211 is a deficient number, since it is larger than the sum of its proper divisors (1234441381).

111120012211211 is an equidigital number, since it uses as much as digits as its factorization.

111120012211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234441380.

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

Adding to 111120012211211 its reverse (112112210021111), we get a palindrome (223232222232322).

The spelling of 111120012211211 in words is "one hundred eleven trillion, one hundred twenty billion, twelve million, two hundred eleven thousand, two hundred eleven".