2212313121 has 32 divisors (see below), whose sum is σ = 3484581120. Its totient is φ = 1384111872.

The previous prime is 2212313119. The next prime is 2212313141. The reversal of 2212313121 is 1213132122.

It is not a de Polignac number, because 2212313121 - 2¹ = 2212313119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212313094 and 2212313103.

It is not an unprimeable number, because it can be changed into a prime (2212313141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696 + ... + 66521.

It is an arithmetic number, because the mean of its divisors is an integer number (108893160).

Almost surely, 2^2212313121 is an apocalyptic number.

It is an amenable number.

2212313121 is a deficient number, since it is larger than the sum of its proper divisors (1272267999).

2212313121 is a wasteful number, since it uses less digits than its factorization.

2212313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67302 (or 67296 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2212313121 is about 47035.2327622603. The cubic root of 2212313121 is about 1303.0133492251.

Adding to 2212313121 its reverse (1213132122), we get a palindrome (3425445243).

The spelling of 2212313121 in words is "two billion, two hundred twelve million, three hundred thirteen thousand, one hundred twenty-one".