1210232213 has 4 divisors (see below), whose sum is σ = 1224813408. Its totient is φ = 1195651020.

The previous prime is 1210232209. The next prime is 1210232311. The reversal of 1210232213 is 3122320121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3122320121 = 47 ⋅66432343.

It is a cyclic number.

It is not a de Polignac number, because 1210232213 - 2² = 1210232209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210232191 and 1210232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210232203) 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 3 ways as a sum of consecutive naturals, for example, 7290473 + ... + 7290638.

It is an arithmetic number, because the mean of its divisors is an integer number (306203352).

Almost surely, 2^1210232213 is an apocalyptic number.

It is an amenable number.

1210232213 is a deficient number, since it is larger than the sum of its proper divisors (14581195).

1210232213 is an equidigital number, since it uses as much as digits as its factorization.

1210232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14581194.

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

The square root of 1210232213 is about 34788.3919289179. The cubic root of 1210232213 is about 1065.6703995392.

Adding to 1210232213 its reverse (3122320121), we get a palindrome (4332552334).

The spelling of 1210232213 in words is "one billion, two hundred ten million, two hundred thirty-two thousand, two hundred thirteen".