21101001110 has 32 divisors (see below), whose sum is σ = 43412887872. Its totient is φ = 7233776640.

The previous prime is 21101001109. The next prime is 21101001121. The reversal of 21101001110 is 1110010112.

It is a happy number.

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, 971570 + ... + 993050.

It is an arithmetic number, because the mean of its divisors is an integer number (1356652746).

Almost surely, 2^21101001110 is an apocalyptic number.

21101001110 is an abundant number, since it is smaller than the sum of its proper divisors (22311886762).

21101001110 is a wasteful number, since it uses less digits than its factorization.

21101001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 21101001110 its reverse (1110010112), we get a palindrome (22211011222).

The spelling of 21101001110 in words is "twenty-one billion, one hundred one million, one thousand, one hundred ten".