1211213335 has 8 divisors (see below), whose sum is σ = 1463913360. Its totient is φ = 961999104.

The previous prime is 1211213329. The next prime is 1211213347. The reversal of 1211213335 is 5333121121.

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 1211213335 - 2¹⁵ = 1211180567 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 870682 + ... + 872071.

It is an arithmetic number, because the mean of its divisors is an integer number (182989170).

Almost surely, 2^1211213335 is an apocalyptic number.

1211213335 is a deficient number, since it is larger than the sum of its proper divisors (252700025).

1211213335 is a wasteful number, since it uses less digits than its factorization.

1211213335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742897.

The product of its digits is 540, while the sum is 22.

The square root of 1211213335 is about 34802.4903562949. The cubic root of 1211213335 is about 1065.9582975284.

Adding to 1211213335 its reverse (5333121121), we get a palindrome (6544334456).

The spelling of 1211213335 in words is "one billion, two hundred eleven million, two hundred thirteen thousand, three hundred thirty-five".