12215354424152 has 64 divisors (see below), whose sum is σ = 25604459717760. Its totient is φ = 5415365894400.

The previous prime is 12215354424101. The next prime is 12215354424211. The reversal of 12215354424152 is 25142445351221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221252 + ... + 4947692.

It is an arithmetic number, because the mean of its divisors is an integer number (400069683090).

Almost surely, 2^{12215354424152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12215354424152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12802229858880).

12215354424152 is an abundant number, since it is smaller than the sum of its proper divisors (13389105293608).

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

12215354424152 is a wasteful number, since it uses less digits than its factorization.

12215354424152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727184 (or 4727180 counting only the distinct ones).

The product of its digits is 384000, while the sum is 41.

Adding to 12215354424152 its reverse (25142445351221), we get a palindrome (37357799775373).

The spelling of 12215354424152 in words is "twelve trillion, two hundred fifteen billion, three hundred fifty-four million, four hundred twenty-four thousand, one hundred fifty-two".