2212101121 has 8 divisors (see below), whose sum is σ = 2331559080. Its totient is φ = 2095521792.

The previous prime is 2212101119. The next prime is 2212101139. The reversal of 2212101121 is 1211012122.

It can be written as a sum of positive squares in 4 ways, for example, as 1077152400 + 1134948721 = 32820^2 + 33689^2 .

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 2212101121 - 2¹ = 2212101119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212101161) 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, 718080 + ... + 721153.

It is an arithmetic number, because the mean of its divisors is an integer number (291444885).

Almost surely, 2^2212101121 is an apocalyptic number.

It is an amenable number.

2212101121 is a deficient number, since it is larger than the sum of its proper divisors (119457959).

2212101121 is a wasteful number, since it uses less digits than its factorization.

2212101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439315.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2212101121 is about 47032.9790785147. The cubic root of 2212101121 is about 1302.9717264771.

Adding to 2212101121 its reverse (1211012122), we get a palindrome (3423113243).

The spelling of 2212101121 in words is "two billion, two hundred twelve million, one hundred one thousand, one hundred twenty-one".