21110011010 has 64 divisors (see below), whose sum is σ = 42123245184. Its totient is φ = 7553088000.

The previous prime is 21110010983. The next prime is 21110011049. The reversal of 21110011010 is 1011001112.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 1805102 + ... + 1816758.

It is an arithmetic number, because the mean of its divisors is an integer number (658175706).

Almost surely, 2^21110011010 is an apocalyptic number.

21110011010 is a deficient number, since it is larger than the sum of its proper divisors (21013234174).

21110011010 is a wasteful number, since it uses less digits than its factorization.

21110011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939.

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

Adding to 21110011010 its reverse (1011001112), we get a palindrome (22121012122).

The spelling of 21110011010 in words is "twenty-one billion, one hundred ten million, eleven thousand, ten".