2121212314 has 16 divisors (see below), whose sum is σ = 3427332552. Its totient is φ = 978804288.

The previous prime is 2121212311. The next prime is 2121212321. The reversal of 2121212314 is 4132121212.

It can be written as a sum of positive squares in 4 ways, for example, as 1531548225 + 589664089 = 39135^2 + 24283^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2121212291 and 2121212300.

It is not an unprimeable number, because it can be changed into a prime (2121212311) 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, 227692 + ... + 236824.

Almost surely, 2^2121212314 is an apocalyptic number.

2121212314 is a deficient number, since it is larger than the sum of its proper divisors (1306120238).

2121212314 is a wasteful number, since it uses less digits than its factorization.

2121212314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081.

The product of its digits is 192, while the sum is 19.

The square root of 2121212314 is about 46056.6207401281. The cubic root of 2121212314 is about 1284.8764816398.

Adding to 2121212314 its reverse (4132121212), we get a palindrome (6253333526).

The spelling of 2121212314 in words is "two billion, one hundred twenty-one million, two hundred twelve thousand, three hundred fourteen".