1210213 has 8 divisors (see below), whose sum is σ = 1291032. Its totient is φ = 1130496.

The previous prime is 1210211. The next prime is 1210229. The reversal of 1210213 is 3120121.

It can be written as a sum of positive squares in 4 ways, for example, as 492804 + 717409 = 702^2 + 847^2 .

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 1210213 - 2¹ = 1210211 is a prime.

It is a Duffinian number.

1210213 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210211) 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, 4231 + ... + 4507.

It is an arithmetic number, because the mean of its divisors is an integer number (161379).

2^1210213 is an apocalyptic number.

It is an amenable number.

1210213 is a deficient number, since it is larger than the sum of its proper divisors (80819).

1210213 is a wasteful number, since it uses less digits than its factorization.

1210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1210213 is about 1100.0968139214. The cubic root of 1210213 is about 106.5664760171.

Adding to 1210213 its reverse (3120121), we get a palindrome (4330334).

The spelling of 1210213 in words is "one million, two hundred ten thousand, two hundred thirteen".