221102131300 has 36 divisors (see below), whose sum is σ = 485572265136. Its totient is φ = 87375296800.

The previous prime is 221102131279. The next prime is 221102131303. The reversal of 221102131300 is 3131201122.

It is not an unprimeable number, because it can be changed into a prime (221102131303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13311106 + ... + 13327705.

It is an arithmetic number, because the mean of its divisors is an integer number (13488118476).

Almost surely, 2^221102131300 is an apocalyptic number.

221102131300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102131300 is an abundant number, since it is smaller than the sum of its proper divisors (264470133836).

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

221102131300 is a wasteful number, since it uses less digits than its factorization.

221102131300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26638908 (or 26638901 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221102131300 its reverse (3131201122), we get a palindrome (224233332422).

The spelling of 221102131300 in words is "two hundred twenty-one billion, one hundred two million, one hundred thirty-one thousand, three hundred".