1213210223 has 8 divisors (see below), whose sum is σ = 1218669168. Its totient is φ = 1207761984.

The previous prime is 1213210181. The next prime is 1213210259. The reversal of 1213210223 is 3220123121.

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 1213210223 - 2²² = 1209015919 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 (1213216223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294365 + ... + 298457.

It is an arithmetic number, because the mean of its divisors is an integer number (152333646).

Almost surely, 2^1213210223 is an apocalyptic number.

1213210223 is a deficient number, since it is larger than the sum of its proper divisors (5458945).

1213210223 is an equidigital number, since it uses as much as digits as its factorization.

1213210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353.

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

The square root of 1213210223 is about 34831.1674079408. The cubic root of 1213210223 is about 1066.5437794738.

Adding to 1213210223 its reverse (3220123121), we get a palindrome (4433333344).

The spelling of 1213210223 in words is "one billion, two hundred thirteen million, two hundred ten thousand, two hundred twenty-three".