12231012 has 12 divisors (see below), whose sum is σ = 28539056. Its totient is φ = 4077000.

The previous prime is 12231001. The next prime is 12231059. The reversal of 12231012 is 21013221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1019251 = 12231012 / (1 + 2 + 2 + 3 + 1 + 0 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509614 + ... + 509637.

Almost surely, 2^12231012 is an apocalyptic number.

12231012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231012 is an abundant number, since it is smaller than the sum of its proper divisors (16308044).

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

12231012 is a wasteful number, since it uses less digits than its factorization.

12231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019258 (or 1019256 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12231012 is about 3497.2863766069. The cubic root of 12231012 is about 230.4026469362.

Adding to 12231012 its reverse (21013221), we get a palindrome (33244233).

The spelling of 12231012 in words is "twelve million, two hundred thirty-one thousand, twelve".