21101310211210 has 16 divisors (see below), whose sum is σ = 38009050154496. Its totient is φ = 8434592579088.

The previous prime is 21101310211199. The next prime is 21101310211211. The reversal of 21101310211210 is 1211201310112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21101310211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741423234 + ... + 741451693.

It is an arithmetic number, because the mean of its divisors is an integer number (2375565634656).

Almost surely, 2^{21101310211210} is an apocalyptic number.

21101310211210 is a deficient number, since it is larger than the sum of its proper divisors (16907739943286).

21101310211210 is a wasteful number, since it uses less digits than its factorization.

21101310211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482876357.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 21101310211210 its reverse (1211201310112), we get a palindrome (22312511521322).

The spelling of 21101310211210 in words is "twenty-one trillion, one hundred one billion, three hundred ten million, two hundred eleven thousand, two hundred ten".