132001232220 has 216 divisors, whose sum is σ = 472990229712. Its totient is φ = 29538662400.

The previous prime is 132001232213. The next prime is 132001232261. The reversal of 132001232220 is 22232100231.

132001232220 is a `hidden beast` number, since 1 + 320 + 0 + 1 + 2 + 322 + 20 = 666.

It is a super-2 number, since 2×132001232220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 132001232193 and 132001232202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 137380 + ... + 531860.

It is an arithmetic number, because the mean of its divisors is an integer number (2189769582).

Almost surely, 2^132001232220 is an apocalyptic number.

132001232220 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 132001232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236495114856).

132001232220 is an abundant number, since it is smaller than the sum of its proper divisors (340988997492).

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

132001232220 is a wasteful number, since it uses less digits than its factorization.

132001232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394533 (or 394515 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 132001232220 its reverse (22232100231), we get a palindrome (154233332451).

The spelling of 132001232220 in words is "one hundred thirty-two billion, one million, two hundred thirty-two thousand, two hundred twenty".