12221232213132 has 96 divisors (see below), whose sum is σ = 32068944230400. Its totient is φ = 4024345905216.

The previous prime is 12221232213101. The next prime is 12221232213149. The reversal of 12221232213132 is 23131223212221.

12221232213132 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 123 + 221 + 313 + 2 = 666.

12221232213132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12221232213096 and 12221232213105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131876869 + ... + 131969507.

It is an arithmetic number, because the mean of its divisors is an integer number (334051502400).

Almost surely, 2^{12221232213132} is an apocalyptic number.

12221232213132 is a gapful number since it is divisible by the number (12) 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 12221232213132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16034472115200).

12221232213132 is an abundant number, since it is smaller than the sum of its proper divisors (19847712017268).

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

12221232213132 is a wasteful number, since it uses less digits than its factorization.

12221232213132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107452 (or 107444 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 12221232213132 its reverse (23131223212221), we get a palindrome (35352455425353).

The spelling of 12221232213132 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-two".