21112330210 has 32 divisors (see below), whose sum is σ = 39242880000. Its totient is φ = 8169430080.

The previous prime is 21112330201. The next prime is 21112330229. The reversal of 21112330210 is 1203321112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918336 + ... + 941044.

It is an arithmetic number, because the mean of its divisors is an integer number (1226340000).

Almost surely, 2^21112330210 is an apocalyptic number.

21112330210 is a deficient number, since it is larger than the sum of its proper divisors (18130549790).

21112330210 is a wasteful number, since it uses less digits than its factorization.

21112330210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25746.

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

Adding to 21112330210 its reverse (1203321112), we get a palindrome (22315651322).

The spelling of 21112330210 in words is "twenty-one billion, one hundred twelve million, three hundred thirty thousand, two hundred ten".