21201110000110 has 16 divisors (see below), whose sum is σ = 39049486326576. Its totient is φ = 8283224371968.

The previous prime is 21201110000093. The next prime is 21201110000123. The reversal of 21201110000110 is 1100001110212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24652453059 + ... + 24652453918.

It is an arithmetic number, because the mean of its divisors is an integer number (2440592895411).

Almost surely, 2^{21201110000110} is an apocalyptic number.

21201110000110 is a deficient number, since it is larger than the sum of its proper divisors (17848376326466).

21201110000110 is a wasteful number, since it uses less digits than its factorization.

21201110000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49304907027.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21201110000110 its reverse (1100001110212), we get a palindrome (22301111110322).

The spelling of 21201110000110 in words is "twenty-one trillion, two hundred one billion, one hundred ten million, one hundred ten", and thus it is an aban number.