21101300210 has 32 divisors (see below), whose sum is σ = 38572543872. Its totient is φ = 8310355200.

The previous prime is 21101300179. The next prime is 21101300243. The reversal of 21101300210 is 1200310112.

It is a junction number, because it is equal to n+sod(n) for n = 21101300191 and 21101300200.

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 15 ways as a sum of consecutive naturals, for example, 108797 + ... + 232463.

It is an arithmetic number, because the mean of its divisors is an integer number (1205391996).

Almost surely, 2^21101300210 is an apocalyptic number.

21101300210 is a deficient number, since it is larger than the sum of its proper divisors (17471243662).

21101300210 is a wasteful number, since it uses less digits than its factorization.

21101300210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123938.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21101300210 its reverse (1200310112), we get a palindrome (22301610322).

The spelling of 21101300210 in words is "twenty-one billion, one hundred one million, three hundred thousand, two hundred ten".