12212031762 has 90 divisors (see below), whose sum is σ = 31292292915. Its totient is φ = 3431952720.

The previous prime is 12212031743. The next prime is 12212031817. The reversal of 12212031762 is 26713021221.

12212031762 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2055624921 + 10156406841 = 45339^2 + 100779^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78141.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 200197212 + ... + 200197272.

Almost surely, 2^12212031762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212031762

12212031762 is an abundant number, since it is smaller than the sum of its proper divisors (19080261153).

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

12212031762 is an frugal number, since it uses more digits than its factorization.

12212031762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 12212031762 its reverse (26713021221), we get a palindrome (38925052983).

The spelling of 12212031762 in words is "twelve billion, two hundred twelve million, thirty-one thousand, seven hundred sixty-two".