12212031540252 has 96 divisors (see below), whose sum is σ = 29160745205760. Its totient is φ = 3976482663360.

The previous prime is 12212031540239. The next prime is 12212031540253. The reversal of 12212031540252 is 25204513021221.

12212031540252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212031540253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73402353 + ... + 73568535.

It is an arithmetic number, because the mean of its divisors is an integer number (303757762560).

Almost surely, 2^{12212031540252} is an apocalyptic number.

12212031540252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212031540252 is an abundant number, since it is smaller than the sum of its proper divisors (16948713665508).

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

12212031540252 is a wasteful number, since it uses less digits than its factorization.

12212031540252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166903 (or 166901 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 12212031540252 its reverse (25204513021221), we get a palindrome (37416544561473).

The spelling of 12212031540252 in words is "twelve trillion, two hundred twelve billion, thirty-one million, five hundred forty thousand, two hundred fifty-two".