1023222213 has 56 divisors (see below), whose sum is σ = 1670060280. Its totient is φ = 622857600.

The previous prime is 1023222203. The next prime is 1023222227. The reversal of 1023222213 is 3122223201.

It can be written as a sum of positive squares in 4 ways, for example, as 213364449 + 809857764 = 14607^2 + 28458^2 .

It is not a de Polignac number, because 1023222213 - 2⁸ = 1023221957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023222203) 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 in 55 ways as a sum of consecutive naturals, for example, 956643 + ... + 957711.

It is an arithmetic number, because the mean of its divisors is an integer number (29822505).

Almost surely, 2^1023222213 is an apocalyptic number.

1023222213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1023222213 is a deficient number, since it is larger than the sum of its proper divisors (646838067).

1023222213 is a wasteful number, since it uses less digits than its factorization.

1023222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1023222213 is about 31987.8447695371. The cubic root of 1023222213 is about 1007.6815799086.

Adding to 1023222213 its reverse (3122223201), we get a palindrome (4145445414).

The spelling of 1023222213 in words is "one billion, twenty-three million, two hundred twenty-two thousand, two hundred thirteen".