32445221200000 has 384 divisors, whose sum is σ = 92413862634240. Its totient is φ = 11114288640000.

The previous prime is 32445221199971. The next prime is 32445221200003. The reversal of 32445221200000 is 212254423.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (32445221200003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3648395554 + ... + 3648404446.

It is an arithmetic number, because the mean of its divisors is an integer number (240661100610).

Almost surely, 2^{32445221200000} 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 32445221200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46206931317120).

32445221200000 is an abundant number, since it is smaller than the sum of its proper divisors (59968641434240).

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

32445221200000 is an frugal number, since it uses more digits than its factorization.

32445221200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242 (or 10210 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 32445221200000 its reverse (212254423), we get a palindrome (32445433454423).

The spelling of 32445221200000 in words is "thirty-two trillion, four hundred forty-five billion, two hundred twenty-one million, two hundred thousand".