240221231600 has 120 divisors (see below), whose sum is σ = 659826720768. Its totient is φ = 82330617600.

The previous prime is 240221231599. The next prime is 240221231609. The reversal of 240221231600 is 6132122042.

It is a happy number.

It is a super-2 number, since 2×240221231600² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240221231609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8180945 + ... + 8210255.

Almost surely, 2^240221231600 is an apocalyptic number.

240221231600 is a gapful number since it is divisible by the number (20) 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 240221231600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329913360384).

240221231600 is an abundant number, since it is smaller than the sum of its proper divisors (419605489168).

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

240221231600 is a wasteful number, since it uses less digits than its factorization.

240221231600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32263 (or 32252 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 240221231600 its reverse (6132122042), we get a palindrome (246353353642).

The spelling of 240221231600 in words is "two hundred forty billion, two hundred twenty-one million, two hundred thirty-one thousand, six hundred".