21413011442244 has 12 divisors (see below), whose sum is σ = 49963693365264. Its totient is φ = 7137670480744.

The previous prime is 21413011442233. The next prime is 21413011442269. The reversal of 21413011442244 is 44224411031412.

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

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, 892208810082 + ... + 892208810105.

It is an arithmetic number, because the mean of its divisors is an integer number (4163641113772).

Almost surely, 2^{21413011442244} is an apocalyptic number.

It is an amenable number.

21413011442244 is an abundant number, since it is smaller than the sum of its proper divisors (28550681923020).

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

21413011442244 is a wasteful number, since it uses less digits than its factorization.

21413011442244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784417620194 (or 1784417620192 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 21413011442244 its reverse (44224411031412), we get a palindrome (65637422473656).

The spelling of 21413011442244 in words is "twenty-one trillion, four hundred thirteen billion, eleven million, four hundred forty-two thousand, two hundred forty-four".