21112114100024 has 8 divisors (see below), whose sum is σ = 39585213937560. Its totient is φ = 10556057050008.

The previous prime is 21112114100003. The next prime is 21112114100029. The reversal of 21112114100024 is 42000141121112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 21112114099969 and 21112114100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112114100029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319507131244 + ... + 1319507131259.

It is an arithmetic number, because the mean of its divisors is an integer number (4948151742195).

Almost surely, 2^{21112114100024} is an apocalyptic number.

It is an amenable number.

21112114100024 is a deficient number, since it is larger than the sum of its proper divisors (18473099837536).

21112114100024 is a wasteful number, since it uses less digits than its factorization.

21112114100024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639014262509 (or 2639014262505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 21112114100024 its reverse (42000141121112), we get a palindrome (63112255221136).

The spelling of 21112114100024 in words is "twenty-one trillion, one hundred twelve billion, one hundred fourteen million, one hundred thousand, twenty-four".