21044100110 has 16 divisors (see below), whose sum is σ = 41322960432. Its totient is φ = 7652400000.

The previous prime is 21044100089. The next prime is 21044100113. The reversal of 21044100110 is 1100144012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21044100113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95654891 + ... + 95655110.

It is an arithmetic number, because the mean of its divisors is an integer number (2582685027).

Almost surely, 2^21044100110 is an apocalyptic number.

21044100110 is a deficient number, since it is larger than the sum of its proper divisors (20278860322).

21044100110 is a wasteful number, since it uses less digits than its factorization.

21044100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191310019.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21044100110 its reverse (1100144012), we get a palindrome (22144244122).

The spelling of 21044100110 in words is "twenty-one billion, forty-four million, one hundred thousand, one hundred ten".