21300221104 has 10 divisors (see below), whose sum is σ = 41269178420. Its totient is φ = 10650110544.

The previous prime is 21300221101. The next prime is 21300221141. The reversal of 21300221104 is 40112200312.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 1331263819 = 21300221104 / (2 + 1 + 3 + 0 + 0 + 2 + 2 + 1 + 1 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (21300221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665631894 + ... + 665631925.

It is an arithmetic number, because the mean of its divisors is an integer number (4126917842).

Almost surely, 2^21300221104 is an apocalyptic number.

It is an amenable number.

21300221104 is a deficient number, since it is larger than the sum of its proper divisors (19968957316).

21300221104 is a wasteful number, since it uses less digits than its factorization.

21300221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331263827 (or 1331263821 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21300221104 its reverse (40112200312), we get a palindrome (61412421416).

The spelling of 21300221104 in words is "twenty-one billion, three hundred million, two hundred twenty-one thousand, one hundred four".