111211120212211 has 8 divisors (see below), whose sum is σ = 112754609459360. Its totient is φ = 109668172836672.

The previous prime is 111211120212107. The next prime is 111211120212251. The reversal of 111211120212211 is 112212021112111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111211120212211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111211120212251) 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, 135054576 + ... + 135875533.

It is an arithmetic number, because the mean of its divisors is an integer number (14094326182420).

Almost surely, 2^{111211120212211} is an apocalyptic number.

111211120212211 is a deficient number, since it is larger than the sum of its proper divisors (1543489247149).

111211120212211 is an equidigital number, since it uses as much as digits as its factorization.

111211120212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270935805.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111211120212211 its reverse (112212021112111), we get a palindrome (223423141324322).

The spelling of 111211120212211 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twenty million, two hundred twelve thousand, two hundred eleven".