221324241040 has 80 divisors (see below), whose sum is σ = 588371591808. Its totient is φ = 75846279168.

The previous prime is 221324241007. The next prime is 221324241041. The reversal of 221324241040 is 40142423122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 221324240996 and 221324241014.

It is not an unprimeable number, because it can be changed into a prime (221324241041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089759 + ... + 1276801.

Almost surely, 2^221324241040 is an apocalyptic number.

221324241040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221324241040 is an abundant number, since it is smaller than the sum of its proper divisors (367047350768).

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

221324241040 is a wasteful number, since it uses less digits than its factorization.

221324241040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189176 (or 189170 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221324241040 its reverse (40142423122), we get a palindrome (261466664162).

The spelling of 221324241040 in words is "two hundred twenty-one billion, three hundred twenty-four million, two hundred forty-one thousand, forty".