12211003331 has 4 divisors (see below), whose sum is σ = 12212139312. Its totient is φ = 12209867352.

The previous prime is 12211003319. The next prime is 12211003333. The reversal of 12211003331 is 13330011221.

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 12211003331 - 2²⁶ = 12143894467 is a prime.

It is a super-2 number, since 2×12211003331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211003333) 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, 551711 + ... + 573416.

It is an arithmetic number, because the mean of its divisors is an integer number (3053034828).

Almost surely, 2^12211003331 is an apocalyptic number.

12211003331 is a deficient number, since it is larger than the sum of its proper divisors (1135981).

12211003331 is a wasteful number, since it uses less digits than its factorization.

12211003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135980.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12211003331 its reverse (13330011221), we get a palindrome (25541014552).

The spelling of 12211003331 in words is "twelve billion, two hundred eleven million, three thousand, three hundred thirty-one".