2210121211121 has 8 divisors (see below), whose sum is σ = 2218017189120. Its totient is φ = 2202225841872.

The previous prime is 2210121211099. The next prime is 2210121211153. The reversal of 2210121211121 is 1211121210122.

2210121211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2210121211121 - 2³⁰ = 2209047469297 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 2210121211121.

It is not an unprimeable number, because it can be changed into a prime (2210121211621) 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, 7876391 + ... + 8152163.

It is an arithmetic number, because the mean of its divisors is an integer number (277252148640).

Almost surely, 2^{2210121211121} is an apocalyptic number.

It is an amenable number.

2210121211121 is a deficient number, since it is larger than the sum of its proper divisors (7895977999).

2210121211121 is a wasteful number, since it uses less digits than its factorization.

2210121211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304375.

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

Adding to 2210121211121 its reverse (1211121210122), we get a palindrome (3421242421243).

Subtracting from 2210121211121 its reverse (1211121210122), we obtain a palindrome (999000000999).

It can be divided in two parts, 2210121 and 211121, that added together give a palindrome (2421242).

The spelling of 2210121211121 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".