21441122112123 has 48 divisors (see below), whose sum is σ = 35630801137152. Its totient is φ = 12170407680000.

The previous prime is 21441122112073. The next prime is 21441122112127. The reversal of 21441122112123 is 32121122114412.

21441122112123 is a `hidden beast` number, since 2 + 1 + 4 + 411 + 22 + 11 + 212 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-21441122112123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441122112127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 371368168 + ... + 371425898.

It is an arithmetic number, because the mean of its divisors is an integer number (742308357024).

Almost surely, 2^{21441122112123} is an apocalyptic number.

21441122112123 is a deficient number, since it is larger than the sum of its proper divisors (14189679025029).

21441122112123 is a wasteful number, since it uses less digits than its factorization.

21441122112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96936 (or 96933 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

Adding to 21441122112123 its reverse (32121122114412), we get a palindrome (53562244226535).

The spelling of 21441122112123 in words is "twenty-one trillion, four hundred forty-one billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty-three".