121112020012211 has 4 divisors (see below), whose sum is σ = 121112044431624. Its totient is φ = 121111995592800.

The previous prime is 121112020012171. The next prime is 121112020012229. The reversal of 121112020012211 is 112210020211121.

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 121112020012211 - 2¹⁸ = 121112019750067 is a prime.

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 121112020012211.

It is not an unprimeable number, because it can be changed into a prime (121112020012271) 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, 1827425 + ... + 15670466.

It is an arithmetic number, because the mean of its divisors is an integer number (30278011107906).

Almost surely, 2^{121112020012211} is an apocalyptic number.

121112020012211 is a deficient number, since it is larger than the sum of its proper divisors (24419413).

121112020012211 is an equidigital number, since it uses as much as digits as its factorization.

121112020012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24419412.

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

Adding to 121112020012211 its reverse (112210020211121), we get a palindrome (233322040223332).

The spelling of 121112020012211 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty million, twelve thousand, two hundred eleven".