2212321121121 has 32 divisors (see below), whose sum is σ = 3059773774848. Its totient is φ = 1420740216000.

The previous prime is 2212321121111. The next prime is 2212321121237. The reversal of 2212321121121 is 1211211232122.

It is not a de Polignac number, because 2212321121121 - 2⁵ = 2212321121089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2212321121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4415046 + ... + 4890528.

It is an arithmetic number, because the mean of its divisors is an integer number (95617930464).

Almost surely, 2^{2212321121121} is an apocalyptic number.

It is an amenable number.

2212321121121 is a deficient number, since it is larger than the sum of its proper divisors (847452653727).

2212321121121 is a wasteful number, since it uses less digits than its factorization.

2212321121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475941.

The product of its digits is 192, while the sum is 21.

Adding to 2212321121121 its reverse (1211211232122), we get a palindrome (3423532353243).

The spelling of 2212321121121 in words is "two trillion, two hundred twelve billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-one".