13212224411220 has 240 divisors, whose sum is σ = 41617405767168. Its totient is φ = 3508808958720.

The previous prime is 13212224411219. The next prime is 13212224411231. The reversal of 13212224411220 is 2211442221231.

13212224411220 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 2 + 2 + 24 + 411 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 915537405 + ... + 915551835.

Almost surely, 2^{13212224411220} is an apocalyptic number.

13212224411220 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 13212224411220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20808702883584).

13212224411220 is an abundant number, since it is smaller than the sum of its proper divisors (28405181355948).

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

13212224411220 is a wasteful number, since it uses less digits than its factorization.

13212224411220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16732 (or 16721 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 13212224411220 its reverse (2211442221231), we get a palindrome (15423666632451).

The spelling of 13212224411220 in words is "thirteen trillion, two hundred twelve billion, two hundred twenty-four million, four hundred eleven thousand, two hundred twenty".