21114424402044 has 12 divisors (see below), whose sum is σ = 49266990271464. Its totient is φ = 7038141467344.

The previous prime is 21114424402033. The next prime is 21114424402079. The reversal of 21114424402044 is 44020442441112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×21114424402044² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21114424401996 and 21114424402014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879767683407 + ... + 879767683430.

It is an arithmetic number, because the mean of its divisors is an integer number (4105582522622).

Almost surely, 2^{21114424402044} is an apocalyptic number.

It is an amenable number.

21114424402044 is an abundant number, since it is smaller than the sum of its proper divisors (28152565869420).

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

21114424402044 is a wasteful number, since it uses less digits than its factorization.

21114424402044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759535366844 (or 1759535366842 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 33.

Adding to 21114424402044 its reverse (44020442441112), we get a palindrome (65134866843156).

The spelling of 21114424402044 in words is "twenty-one trillion, one hundred fourteen billion, four hundred twenty-four million, four hundred two thousand, forty-four".