2122112213 has 6 divisors (see below), whose sum is σ = 2297908674. Its totient is φ = 1958872656.

The previous prime is 2122112189. The next prime is 2122112219. The reversal of 2122112213 is 3122112212.

It can be written as a sum of positive squares in 3 ways, for example, as 71199844 + 2050912369 = 8438^2 + 45287^2 .

It is not a de Polignac number, because 2122112213 - 2²² = 2117917909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122112191 and 2122112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122112219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6278270 + ... + 6278607.

It is an arithmetic number, because the mean of its divisors is an integer number (382984779).

Almost surely, 2^2122112213 is an apocalyptic number.

It is an amenable number.

2122112213 is a deficient number, since it is larger than the sum of its proper divisors (175796461).

2122112213 is a wasteful number, since it uses less digits than its factorization.

2122112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556903 (or 12556890 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2122112213 is about 46066.3891899506. The cubic root of 2122112213 is about 1285.0581537874.

Adding to 2122112213 its reverse (3122112212), we get a palindrome (5244224425).

Subtracting 2122112213 from its reverse (3122112212), we obtain a palindrome (999999999).

The spelling of 2122112213 in words is "two billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirteen".