2213103121 has 8 divisors (see below), whose sum is σ = 2222548520. Its totient is φ = 2203673472.

The previous prime is 2213103107. The next prime is 2213103133. The reversal of 2213103121 is 1213013122.

It can be written as a sum of positive squares in 4 ways, for example, as 19492225 + 2193610896 = 4415^2 + 46836^2 .

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 2213103121 - 2²⁹ = 1676232209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213103095 and 2213103104.

It is not an unprimeable number, because it can be changed into a prime (2213103161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338875 + ... + 345343.

It is an arithmetic number, because the mean of its divisors is an integer number (277818565).

Almost surely, 2^2213103121 is an apocalyptic number.

It is an amenable number.

2213103121 is a deficient number, since it is larger than the sum of its proper divisors (9445399).

2213103121 is a wasteful number, since it uses less digits than its factorization.

2213103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2213103121 is about 47043.6299726116. The cubic root of 2213103121 is about 1303.1684294489.

Adding to 2213103121 its reverse (1213013122), we get a palindrome (3426116243).

The spelling of 2213103121 in words is "two billion, two hundred thirteen million, one hundred three thousand, one hundred twenty-one".