21214401241 has 8 divisors (see below), whose sum is σ = 23209681824. Its totient is φ = 19230237120.

The previous prime is 21214401239. The next prime is 21214401259. The reversal of 21214401241 is 14210441212.

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

It is a cyclic number.

It is not a de Polignac number, because 21214401241 - 2¹ = 21214401239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214401211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775120 + ... + 2782753.

It is an arithmetic number, because the mean of its divisors is an integer number (2901210228).

Almost surely, 2^21214401241 is an apocalyptic number.

It is an amenable number.

21214401241 is a deficient number, since it is larger than the sum of its proper divisors (1995280583).

21214401241 is a wasteful number, since it uses less digits than its factorization.

21214401241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558231.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21214401241 its reverse (14210441212), we get a palindrome (35424842453).

The spelling of 21214401241 in words is "twenty-one billion, two hundred fourteen million, four hundred one thousand, two hundred forty-one".