21455350112241 has 12 divisors (see below), whose sum is σ = 30991398197760. Its totient is φ = 14303411237880.

The previous prime is 21455350112227. The next prime is 21455350112257. The reversal of 21455350112241 is 14221105355412.

21455350112241 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 535 + 0 + 112 + 2 + 4 + 1 = 666.

It is not a de Polignac number, because 21455350112241 - 2⁷ = 21455350112113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21455350112196 and 21455350112205.

It is not an unprimeable number, because it can be changed into a prime (21455350112941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12081681 + ... + 13743278.

It is an arithmetic number, because the mean of its divisors is an integer number (2582616516480).

Almost surely, 2^{21455350112241} is an apocalyptic number.

It is an amenable number.

21455350112241 is a deficient number, since it is larger than the sum of its proper divisors (9536048085519).

21455350112241 is a wasteful number, since it uses less digits than its factorization.

21455350112241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25917276 (or 25917273 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 21455350112241 its reverse (14221105355412), we get a palindrome (35676455467653).

The spelling of 21455350112241 in words is "twenty-one trillion, four hundred fifty-five billion, three hundred fifty million, one hundred twelve thousand, two hundred forty-one".