1012223213 has 2 divisors, whose sum is σ = 1012223214. Its totient is φ = 1012223212.

The previous prime is 1012223209. The next prime is 1012223237. The reversal of 1012223213 is 3123222101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 977625289 + 34597924 = 31267^2 + 5882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012223213 - 2² = 1012223209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012223191 and 1012223200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012223243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506111606 + 506111607.

It is an arithmetic number, because the mean of its divisors is an integer number (506111607).

Almost surely, 2^1012223213 is an apocalyptic number.

It is an amenable number.

1012223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012223213 is an equidigital number, since it uses as much as digits as its factorization.

1012223213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012223213 is about 31815.4555680097. The cubic root of 1012223213 is about 1004.0579153826.

Adding to 1012223213 its reverse (3123222101), we get a palindrome (4135445314).

The spelling of 1012223213 in words is "one billion, twelve million, two hundred twenty-three thousand, two hundred thirteen".