21100002110 has 32 divisors (see below), whose sum is σ = 41629140864. Its totient is φ = 7636356000.

The previous prime is 21100002107. The next prime is 21100002127. The reversal of 21100002110 is 1120000112.

It is a congruent number.

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, 431336 + ... + 477755.

It is an arithmetic number, because the mean of its divisors is an integer number (1300910652).

Almost surely, 2^21100002110 is an apocalyptic number.

21100002110 is a deficient number, since it is larger than the sum of its proper divisors (20529138754).

21100002110 is a wasteful number, since it uses less digits than its factorization.

21100002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909320.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 21100002110 its reverse (1120000112), we get a palindrome (22220002222).

It can be divided in two parts, 21100002 and 110, that added together give a palindrome (21100112).

The spelling of 21100002110 in words is "twenty-one billion, one hundred million, two thousand, one hundred ten".