221303321022100 has 36 divisors (see below), whose sum is σ = 501107693867424. Its totient is φ = 84672574998880.

The previous prime is 221303321022061. The next prime is 221303321022149. The reversal of 221303321022100 is 1220123303122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48109415314 + ... + 48109419913.

It is an arithmetic number, because the mean of its divisors is an integer number (13919658162984).

Almost surely, 2^{221303321022100} is an apocalyptic number.

221303321022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221303321022100 is an abundant number, since it is smaller than the sum of its proper divisors (279804372845324).

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

221303321022100 is a wasteful number, since it uses less digits than its factorization.

221303321022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96218835264 (or 96218835257 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221303321022100 its reverse (1220123303122), we get a palindrome (222523444325222).

The spelling of 221303321022100 in words is "two hundred twenty-one trillion, three hundred three billion, three hundred twenty-one million, twenty-two thousand, one hundred".