1210312213 has 8 divisors (see below), whose sum is σ = 1320602976. Its totient is φ = 1100065200.

The previous prime is 1210312193. The next prime is 1210312223. The reversal of 1210312213 is 3122130121.

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 1210312213 - 2⁹ = 1210311701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210312223) 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 7 ways as a sum of consecutive naturals, for example, 79378 + ... + 93388.

It is an arithmetic number, because the mean of its divisors is an integer number (165075372).

Almost surely, 2^1210312213 is an apocalyptic number.

It is an amenable number.

1210312213 is a deficient number, since it is larger than the sum of its proper divisors (110290763).

1210312213 is a wasteful number, since it uses less digits than its factorization.

1210312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21875.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1210312213 is about 34789.5417187407. The cubic root of 1210312213 is about 1065.6938803645.

Adding to 1210312213 its reverse (3122130121), we get a palindrome (4332442334).

The spelling of 1210312213 in words is "one billion, two hundred ten million, three hundred twelve thousand, two hundred thirteen".