2212210011121 has 4 divisors (see below), whose sum is σ = 2413320012144. Its totient is φ = 2011100010100.

The previous prime is 2212210011061. The next prime is 2212210011127. The reversal of 2212210011121 is 1211100122122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2212210011121 - 2²³ = 2212201622513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212210011095 and 2212210011104.

It is not an unprimeable number, because it can be changed into a prime (2212210011127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100555000495 + ... + 100555000516.

It is an arithmetic number, because the mean of its divisors is an integer number (603330003036).

Almost surely, 2^{2212210011121} is an apocalyptic number.

It is an amenable number.

2212210011121 is a deficient number, since it is larger than the sum of its proper divisors (201110001023).

2212210011121 is a wasteful number, since it uses less digits than its factorization.

2212210011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201110001022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2212210011121 its reverse (1211100122122), we get a palindrome (3423310133243).

It can be divided in two parts, 221221001 and 1121, that added together give a palindrome (221222122).

The spelling of 2212210011121 in words is "two trillion, two hundred twelve billion, two hundred ten million, eleven thousand, one hundred twenty-one".