21114405442124 has 12 divisors (see below), whose sum is σ = 36951281189424. Its totient is φ = 10556896530864.

The previous prime is 21114405442121. The next prime is 21114405442157. The reversal of 21114405442124 is 42124450441112.

It is not an unprimeable number, because it can be changed into a prime (21114405442121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76392359 + ... + 76668254.

It is an arithmetic number, because the mean of its divisors is an integer number (3079273432452).

Almost surely, 2^{21114405442124} is an apocalyptic number.

It is an amenable number.

21114405442124 is a deficient number, since it is larger than the sum of its proper divisors (15836875747300).

21114405442124 is a wasteful number, since it uses less digits than its factorization.

21114405442124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153095104 (or 153095102 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

Adding to 21114405442124 its reverse (42124450441112), we get a palindrome (63238855883236).

The spelling of 21114405442124 in words is "twenty-one trillion, one hundred fourteen billion, four hundred five million, four hundred forty-two thousand, one hundred twenty-four".