10331221211 has 4 divisors (see below), whose sum is σ = 10331441232. Its totient is φ = 10331001192.

The previous prime is 10331221207. The next prime is 10331221217. The reversal of 10331221211 is 11212213301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11212213301 = 137 ⋅81840973.

It is a cyclic number.

It is not a de Polignac number, because 10331221211 - 2² = 10331221207 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 10331221211.

It is not an unprimeable number, because it can be changed into a prime (10331221217) 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, 8120 + ... + 143973.

It is an arithmetic number, because the mean of its divisors is an integer number (2582860308).

Almost surely, 2^10331221211 is an apocalyptic number.

10331221211 is a deficient number, since it is larger than the sum of its proper divisors (220021).

10331221211 is an equidigital number, since it uses as much as digits as its factorization.

10331221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220020.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10331221211 its reverse (11212213301), we get a palindrome (21543434512).

The spelling of 10331221211 in words is "ten billion, three hundred thirty-one million, two hundred twenty-one thousand, two hundred eleven".