1213033312211 has 8 divisors (see below), whose sum is σ = 1386338832384. Its totient is φ = 1039731553800.

The previous prime is 1213033312207. The next prime is 1213033312213. The reversal of 1213033312211 is 1122133303121.

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 1213033312211 - 2² = 1213033312207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213033312213) 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, 211805 + ... + 1571918.

It is an arithmetic number, because the mean of its divisors is an integer number (173292354048).

Almost surely, 2^{1213033312211} is an apocalyptic number.

1213033312211 is a deficient number, since it is larger than the sum of its proper divisors (173305520173).

1213033312211 is an equidigital number, since it uses as much as digits as its factorization.

1213033312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880881.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213033312211 its reverse (1122133303121), we get a palindrome (2335166615332).

The spelling of 1213033312211 in words is "one trillion, two hundred thirteen billion, thirty-three million, three hundred twelve thousand, two hundred eleven".