1212300213 has 4 divisors (see below), whose sum is σ = 1616400288. Its totient is φ = 808200140.

The previous prime is 1212300197. The next prime is 1212300251. The reversal of 1212300213 is 3120032121.

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.

It is a cyclic number.

It is not a de Polignac number, because 1212300213 - 2⁴ = 1212300197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212300192 and 1212300201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212300293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202050033 + ... + 202050038.

It is an arithmetic number, because the mean of its divisors is an integer number (404100072).

Almost surely, 2^1212300213 is an apocalyptic number.

It is an amenable number.

1212300213 is a deficient number, since it is larger than the sum of its proper divisors (404100075).

1212300213 is an equidigital number, since it uses as much as digits as its factorization.

1212300213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404100074.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212300213 is about 34818.1018006439. The cubic root of 1212300213 is about 1066.2770468399.

Adding to 1212300213 its reverse (3120032121), we get a palindrome (4332332334).

The spelling of 1212300213 in words is "one billion, two hundred twelve million, three hundred thousand, two hundred thirteen".