12212031076 has 18 divisors (see below), whose sum is σ = 24860206518. Its totient is φ = 5233727520.

The previous prime is 12212031059. The next prime is 12212031077. The reversal of 12212031076 is 67013021221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8851046400 + 3360984676 = 94080^2 + 57974^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212031076.

It is not an unprimeable number, because it can be changed into a prime (12212031077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31152945 + ... + 31153336.

Almost surely, 2^12212031076 is an apocalyptic number.

It is an amenable number.

12212031076 is an abundant number, since it is smaller than the sum of its proper divisors (12648175442).

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

12212031076 is a wasteful number, since it uses less digits than its factorization.

12212031076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62306299 (or 62306290 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12212031076 its reverse (67013021221), we get a palindrome (79225052297).

The spelling of 12212031076 in words is "twelve billion, two hundred twelve million, thirty-one thousand, seventy-six".