12211131331 has 16 divisors (see below), whose sum is σ = 14850777600. Its totient is φ = 9801475200.

The previous prime is 12211131301. The next prime is 12211131343. The reversal of 12211131331 is 13313111221.

It is a cyclic number.

It is not a de Polignac number, because 12211131331 - 2¹⁵ = 12211098563 is a prime.

It is a super-2 number, since 2×12211131331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211131299 and 12211131308.

It is not an unprimeable number, because it can be changed into a prime (12211131301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234145 + ... + 281506.

It is an arithmetic number, because the mean of its divisors is an integer number (928173600).

Almost surely, 2^12211131331 is an apocalyptic number.

12211131331 is a deficient number, since it is larger than the sum of its proper divisors (2639646269).

12211131331 is a wasteful number, since it uses less digits than its factorization.

12211131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515874.

The product of its digits is 108, while the sum is 19.

Adding to 12211131331 its reverse (13313111221), we get a palindrome (25524242552).

The spelling of 12211131331 in words is "twelve billion, two hundred eleven million, one hundred thirty-one thousand, three hundred thirty-one".