12231013122 has 40 divisors (see below), whose sum is σ = 27448231932. Its totient is φ = 4070800800.

The previous prime is 12231013121. The next prime is 12231013147. The reversal of 12231013122 is 22131013221.

It can be written as a sum of positive squares in 2 ways, for example, as 11876858361 + 354154761 = 108981^2 + 18819^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12231013095 and 12231013104.

It is not an unprimeable number, because it can be changed into a prime (12231013121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49972 + ... + 164192.

Almost surely, 2^12231013122 is an apocalyptic number.

12231013122 is an abundant number, since it is smaller than the sum of its proper divisors (15217218810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12231013122 is a wasteful number, since it uses less digits than its factorization.

12231013122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114896 (or 114887 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12231013122 its reverse (22131013221), we get a palindrome (34362026343).

Subtracting 12231013122 from its reverse (22131013221), we obtain a palindrome (9900000099).

The spelling of 12231013122 in words is "twelve billion, two hundred thirty-one million, thirteen thousand, one hundred twenty-two".