21110100010 has 16 divisors (see below), whose sum is σ = 38077516800. Its totient is φ = 8426409616.

The previous prime is 21110099971. The next prime is 21110100023. The reversal of 21110100010 is 1000101112.

It is a junction number, because it is equal to n+sod(n) for n = 21110099966 and 21110100002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198770 + ... + 2208349.

It is an arithmetic number, because the mean of its divisors is an integer number (2379844800).

Almost surely, 2^21110100010 is an apocalyptic number.

21110100010 is a deficient number, since it is larger than the sum of its proper divisors (16967416790).

21110100010 is a wasteful number, since it uses less digits than its factorization.

21110100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407605.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 21110100010 its reverse (1000101112), we get a palindrome (22110201122).

The spelling of 21110100010 in words is "twenty-one billion, one hundred ten million, one hundred thousand, ten".