2212211121 has 8 divisors (see below), whose sum is σ = 2949904320. Its totient is φ = 1474662672.

The previous prime is 2212211107. The next prime is 2212211123. The reversal of 2212211121 is 1211122122.

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

It is not a de Polignac number, because 2212211121 - 2¹⁴ = 2212194737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212211121.

It is not an unprimeable number, because it can be changed into a prime (2212211123) 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 7 ways as a sum of consecutive naturals, for example, 6756 + ... + 66858.

It is an arithmetic number, because the mean of its divisors is an integer number (368738040).

Almost surely, 2^2212211121 is an apocalyptic number.

It is an amenable number.

2212211121 is a deficient number, since it is larger than the sum of its proper divisors (737693199).

2212211121 is a wasteful number, since it uses less digits than its factorization.

2212211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72375.

The product of its digits is 32, while the sum is 15.

The square root of 2212211121 is about 47034.1484562015. The cubic root of 2212211121 is about 1302.9933235179.

Adding to 2212211121 its reverse (1211122122), we get a palindrome (3423333243).

The spelling of 2212211121 in words is "two billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-one".