2222212213 has 8 divisors (see below), whose sum is σ = 2397455928. Its totient is φ = 2047583424.

The previous prime is 2222212211. The next prime is 2222212243. The reversal of 2222212213 is 3122122222.

It can be written as a sum of positive squares in 4 ways, for example, as 106028209 + 2116184004 = 10297^2 + 46002^2 .

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 2222212213 - 2¹ = 2222212211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222212211) 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, 146206 + ... + 160687.

It is an arithmetic number, because the mean of its divisors is an integer number (299681991).

Almost surely, 2^2222212213 is an apocalyptic number.

It is an amenable number.

2222212213 is a deficient number, since it is larger than the sum of its proper divisors (175243715).

2222212213 is a wasteful number, since it uses less digits than its factorization.

2222212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307463.

The product of its digits is 384, while the sum is 19.

The square root of 2222212213 is about 47140.3459151500. The cubic root of 2222212213 is about 1304.9539211477.

Adding to 2222212213 its reverse (3122122222), we get a palindrome (5344334435).

The spelling of 2222212213 in words is "two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred thirteen".