21110122310 has 16 divisors (see below), whose sum is σ = 38208158352. Its totient is φ = 8397396000.

The previous prime is 21110122291. The next prime is 21110122343. The reversal of 21110122310 is 1322101112.

It is a super-2 number, since 2×21110122310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5829716 + ... + 5833335.

It is an arithmetic number, because the mean of its divisors is an integer number (2388009897).

Almost surely, 2^21110122310 is an apocalyptic number.

21110122310 is a deficient number, since it is larger than the sum of its proper divisors (17098036042).

21110122310 is a wasteful number, since it uses less digits than its factorization.

21110122310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11663239.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21110122310 its reverse (1322101112), we get a palindrome (22432223422).

The spelling of 21110122310 in words is "twenty-one billion, one hundred ten million, one hundred twenty-two thousand, three hundred ten".