12211331031 has 12 divisors (see below), whose sum is σ = 17641516152. Its totient is φ = 8139536496.

The previous prime is 12211331029. The next prime is 12211331039. The reversal of 12211331031 is 13013311221.

It is not a de Polignac number, because 12211331031 - 2¹ = 12211331029 is a prime.

It is a super-2 number, since 2×12211331031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211330995 and 12211331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211331039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53701 + ... + 165246.

It is an arithmetic number, because the mean of its divisors is an integer number (1470126346).

Almost surely, 2^12211331031 is an apocalyptic number.

12211331031 is a deficient number, since it is larger than the sum of its proper divisors (5430185121).

12211331031 is a wasteful number, since it uses less digits than its factorization.

12211331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225150 (or 225147 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12211331031 its reverse (13013311221), we get a palindrome (25224642252).

The spelling of 12211331031 in words is "twelve billion, two hundred eleven million, three hundred thirty-one thousand, thirty-one".