12211413503520 has 384 divisors, whose sum is σ = 48936284006400. Its totient is φ = 2537436195840.

The previous prime is 12211413503507. The next prime is 12211413503533. The reversal of 12211413503520 is 2530531411221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12211413503507) and next prime (12211413503533).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1560342 + ... + 5182421.

It is an arithmetic number, because the mean of its divisors is an integer number (127438239600).

Almost surely, 2^{12211413503520} is an apocalyptic number.

12211413503520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211413503520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24468142003200).

12211413503520 is an abundant number, since it is smaller than the sum of its proper divisors (36724870502880).

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

12211413503520 is a wasteful number, since it uses less digits than its factorization.

12211413503520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742813 (or 6742791 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 12211413503520 its reverse (2530531411221), we get a palindrome (14741944914741).

The spelling of 12211413503520 in words is "twelve trillion, two hundred eleven billion, four hundred thirteen million, five hundred three thousand, five hundred twenty".