2213212123 has 2 divisors, whose sum is σ = 2213212124. Its totient is φ = 2213212122.

The previous prime is 2213212117. The next prime is 2213212259. The reversal of 2213212123 is 3212123122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2213212123 - 2¹⁷ = 2213081051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2213212123.

It is not a weakly prime, because it can be changed into another prime (2213212523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106606061 + 1106606062.

It is an arithmetic number, because the mean of its divisors is an integer number (1106606062).

Almost surely, 2^2213212123 is an apocalyptic number.

2213212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213212123 is an equidigital number, since it uses as much as digits as its factorization.

2213212123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 2213212123 is about 47044.7884786402. The cubic root of 2213212123 is about 1303.1898240889.

Adding to 2213212123 its reverse (3212123122), we get a palindrome (5425335245).

The spelling of 2213212123 in words is "two billion, two hundred thirteen million, two hundred twelve thousand, one hundred twenty-three".