221303131030300 has 36 divisors (see below), whose sum is σ = 523884866550696. Its totient is φ = 80473865828800.

The previous prime is 221303131030271. The next prime is 221303131030339. The reversal of 221303131030300 is 3030131303122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100592331187 + ... + 100592333386.

It is an arithmetic number, because the mean of its divisors is an integer number (14552357404186).

Almost surely, 2^{221303131030300} is an apocalyptic number.

221303131030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221303131030300 is an abundant number, since it is smaller than the sum of its proper divisors (302581735520396).

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

221303131030300 is a wasteful number, since it uses less digits than its factorization.

221303131030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201184664598 (or 201184664591 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 221303131030300 its reverse (3030131303122), we get a palindrome (224333262333422).

The spelling of 221303131030300 in words is "two hundred twenty-one trillion, three hundred three billion, one hundred thirty-one million, thirty thousand, three hundred".