221113221302100 has 72 divisors (see below), whose sum is σ = 639803632446720. Its totient is φ = 58958974638080.

The previous prime is 221113221302023. The next prime is 221113221302107. The reversal of 221113221302100 is 1203122311122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113221302107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24549837 + ... + 32325236.

It is an arithmetic number, because the mean of its divisors is an integer number (8886161561760).

Almost surely, 2^{221113221302100} is an apocalyptic number.

221113221302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221113221302100 is an abundant number, since it is smaller than the sum of its proper divisors (418690411144620).

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

221113221302100 is a wasteful number, since it uses less digits than its factorization.

221113221302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56888049 (or 56888042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221113221302100 its reverse (1203122311122), we get a palindrome (222316343613222).

The spelling of 221113221302100 in words is "two hundred twenty-one trillion, one hundred thirteen billion, two hundred twenty-one million, three hundred two thousand, one hundred".