21330044241 has 16 divisors (see below), whose sum is σ = 31076160960. Its totient is φ = 12906198720.

The previous prime is 21330044231. The next prime is 21330044249. The reversal of 21330044241 is 14244003312.

It is not a de Polignac number, because 21330044241 - 2⁵ = 21330044209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21330044249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506986 + ... + 547443.

It is an arithmetic number, because the mean of its divisors is an integer number (1942260060).

Almost surely, 2^21330044241 is an apocalyptic number.

It is an amenable number.

21330044241 is a deficient number, since it is larger than the sum of its proper divisors (9746116719).

21330044241 is a wasteful number, since it uses less digits than its factorization.

21330044241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055056.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21330044241 its reverse (14244003312), we get a palindrome (35574047553).

The spelling of 21330044241 in words is "twenty-one billion, three hundred thirty million, forty-four thousand, two hundred forty-one".