221103421324120 has 64 divisors (see below), whose sum is σ = 501307303004640. Its totient is φ = 87761511552000.

The previous prime is 221103421324081. The next prime is 221103421324169. The reversal of 221103421324120 is 21423124301122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96865084 + ... + 99121396.

Almost surely, 2^{221103421324120} is an apocalyptic number.

221103421324120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221103421324120 is an abundant number, since it is smaller than the sum of its proper divisors (280203881680520).

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

221103421324120 is a wasteful number, since it uses less digits than its factorization.

221103421324120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275156 (or 2275152 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 221103421324120 its reverse (21423124301122), we get a palindrome (242526545625242).

The spelling of 221103421324120 in words is "two hundred twenty-one trillion, one hundred three billion, four hundred twenty-one million, three hundred twenty-four thousand, one hundred twenty".