112211212211 has 12 divisors (see below), whose sum is σ = 136206690192. Its totient is φ = 91999253808.

The previous prime is 112211212121. The next prime is 112211212283. The reversal of 112211212211 is 112212112211.

It is not a de Polignac number, because 112211212211 - 2¹⁰ = 112211211187 is a prime.

It is a super-2 number, since 2×112211212211² (a number of 23 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 112211212211.

It is not an unprimeable number, because it can be changed into a prime (112211212511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49782020 + ... + 49784273.

It is an arithmetic number, because the mean of its divisors is an integer number (11350557516).

Almost surely, 2^112211212211 is an apocalyptic number.

112211212211 is a deficient number, since it is larger than the sum of its proper divisors (23995477981).

112211212211 is an equidigital number, since it uses as much as digits as its factorization.

112211212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99566330 (or 99566323 counting only the distinct ones).

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

Adding to 112211212211 its reverse (112212112211), we get a palindrome (224423324422).

The spelling of 112211212211 in words is "one hundred twelve billion, two hundred eleven million, two hundred twelve thousand, two hundred eleven".