1304212211 has 4 divisors (see below), whose sum is σ = 1305505800. Its totient is φ = 1302918624.

The previous prime is 1304212207. The next prime is 1304212219. The reversal of 1304212211 is 1122124031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1304212211 - 2² = 1304212207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304212211.

It is not an unprimeable number, because it can be changed into a prime (1304212219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645281 + ... + 647298.

It is an arithmetic number, because the mean of its divisors is an integer number (326376450).

Almost surely, 2^1304212211 is an apocalyptic number.

1304212211 is a deficient number, since it is larger than the sum of its proper divisors (1293589).

1304212211 is a wasteful number, since it uses less digits than its factorization.

1304212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293588.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1304212211 is about 36113.8783710639. The cubic root of 1304212211 is about 1092.5703755806.

Adding to 1304212211 its reverse (1122124031), we get a palindrome (2426336242).

The spelling of 1304212211 in words is "one billion, three hundred four million, two hundred twelve thousand, two hundred eleven".