21101300110 has 48 divisors (see below), whose sum is σ = 42337372896. Its totient is φ = 7565096000.

The previous prime is 21101300093. The next prime is 21101300111. The reversal of 21101300110 is 1100310112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101300111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36901 + ... + 208720.

It is an arithmetic number, because the mean of its divisors is an integer number (882028602).

Almost surely, 2^21101300110 is an apocalyptic number.

21101300110 is an abundant number, since it is smaller than the sum of its proper divisors (21236072786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21101300110 is a wasteful number, since it uses less digits than its factorization.

21101300110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245721 (or 245710 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 21101300110 its reverse (1100310112), we get a palindrome (22201610222).

The spelling of 21101300110 in words is "twenty-one billion, one hundred one million, three hundred thousand, one hundred ten".