121110112212211 has 4 divisors (see below), whose sum is σ = 122815888440624. Its totient is φ = 119404335983800.

The previous prime is 121110112212197. The next prime is 121110112212233. The reversal of 121110112212211 is 112212211011121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121110112212211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110112212511) 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, 852888114100 + ... + 852888114241.

It is an arithmetic number, because the mean of its divisors is an integer number (30703972110156).

Almost surely, 2^{121110112212211} is an apocalyptic number.

121110112212211 is a deficient number, since it is larger than the sum of its proper divisors (1705776228413).

121110112212211 is an equidigital number, since it uses as much as digits as its factorization.

121110112212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705776228412.

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

Adding to 121110112212211 its reverse (112212211011121), we get a palindrome (233322323223332).

The spelling of 121110112212211 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twelve million, two hundred twelve thousand, two hundred eleven".