21010223110 has 16 divisors (see below), whose sum is σ = 37901163456. Its totient is φ = 8385697728.

The previous prime is 21010223063. The next prime is 21010223191. The reversal of 21010223110 is 1132201012.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2294142 + ... + 2303281.

It is an arithmetic number, because the mean of its divisors is an integer number (2368822716).

Almost surely, 2^21010223110 is an apocalyptic number.

21010223110 is a deficient number, since it is larger than the sum of its proper divisors (16890940346).

21010223110 is a wasteful number, since it uses less digits than its factorization.

21010223110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597887.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21010223110 its reverse (1132201012), we get a palindrome (22142424122).

The spelling of 21010223110 in words is "twenty-one billion, ten million, two hundred twenty-three thousand, one hundred ten".