21050144302241 has 8 divisors (see below), whose sum is σ = 21598373791104. Its totient is φ = 20504582597520.

The previous prime is 21050144302189. The next prime is 21050144302247. The reversal of 21050144302241 is 14220344105012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21050144302241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21050144302247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666930050 + ... + 666961611.

It is an arithmetic number, because the mean of its divisors is an integer number (2699796723888).

Almost surely, 2^{21050144302241} is an apocalyptic number.

It is an amenable number.

21050144302241 is a deficient number, since it is larger than the sum of its proper divisors (548229488863).

21050144302241 is a wasteful number, since it uses less digits than its factorization.

21050144302241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333892071.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 21050144302241 its reverse (14220344105012), we get a palindrome (35270488407253).

The spelling of 21050144302241 in words is "twenty-one trillion, fifty billion, one hundred forty-four million, three hundred two thousand, two hundred forty-one".