2212112120121 has 16 divisors (see below), whose sum is σ = 3289296152320. Its totient is φ = 1469299558320.

The previous prime is 2212112120077. The next prime is 2212112120213. The reversal of 2212112120121 is 1210212112122.

2212112120121 is a `hidden beast` number, since 221 + 211 + 212 + 0 + 1 + 21 = 666.

It is not a de Polignac number, because 2212112120121 - 2¹³ = 2212112111929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2212112120094 and 2212112120103.

It is not an unprimeable number, because it can be changed into a prime (2212112110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151155190 + ... + 151169823.

It is an arithmetic number, because the mean of its divisors is an integer number (205581009520).

Almost surely, 2^{2212112120121} is an apocalyptic number.

It is an amenable number.

2212112120121 is a deficient number, since it is larger than the sum of its proper divisors (1077184032199).

2212112120121 is a wasteful number, since it uses less digits than its factorization.

2212112120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302325293 (or 302325287 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2212112120121 its reverse (1210212112122), we get a palindrome (3422324232243).

The spelling of 2212112120121 in words is "two trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty-one".