21110102123110 has 192 divisors, whose sum is σ = 51914032797312. Its totient is φ = 6013497600000.

The previous prime is 21110102123087. The next prime is 21110102123119. The reversal of 21110102123110 is 1132120101112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110102123119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10172010 + ... + 12070210.

It is an arithmetic number, because the mean of its divisors is an integer number (270385587486).

Almost surely, 2^{21110102123110} is an apocalyptic number.

21110102123110 is an abundant number, since it is smaller than the sum of its proper divisors (30803930674202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110102123110 is a wasteful number, since it uses less digits than its factorization.

21110102123110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898351 (or 1898340 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 21110102123110 its reverse (1132120101112), we get a palindrome (22242222224222).

It can be divided in two parts, 21110102 and 123110, that added together give a palindrome (21233212).

The spelling of 21110102123110 in words is "twenty-one trillion, one hundred ten billion, one hundred two million, one hundred twenty-three thousand, one hundred ten".