2122012213 has 2 divisors, whose sum is σ = 2122012214. Its totient is φ = 2122012212.

The previous prime is 2122012181. The next prime is 2122012229. The reversal of 2122012213 is 3122102212.

It is a happy number.

It is an a-pointer prime, because the next prime (2122012229) can be obtained adding 2122012213 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1376558404 + 745453809 = 37102^2 + 27303^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122012213 - 2⁵ = 2122012181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122012313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061006106 + 1061006107.

It is an arithmetic number, because the mean of its divisors is an integer number (1061006107).

Almost surely, 2^2122012213 is an apocalyptic number.

It is an amenable number.

2122012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122012213 is an equidigital number, since it uses as much as digits as its factorization.

2122012213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2122012213 is about 46065.3037871238. The cubic root of 2122012213 is about 1285.0379682645.

Adding to 2122012213 its reverse (3122102212), we get a palindrome (5244114425).

It can be divided in two parts, 21220 and 12213, that added together give a palindrome (33433).

The spelling of 2122012213 in words is "two billion, one hundred twenty-two million, twelve thousand, two hundred thirteen".