21241224134 has 8 divisors (see below), whose sum is σ = 34312746720. Its totient is φ = 9803641896.

The previous prime is 21241224023. The next prime is 21241224161. The reversal of 21241224134 is 43142214212.

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

It is a super-3 number, since 3×21241224134³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 816970159 = 21241224134 / (2 + 1 + 2 + 4 + 1 + 2 + 2 + 4 + 1 + 3 + 4).

It is a Curzon number.

It is a congruent number.

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, 408485054 + ... + 408485105.

It is an arithmetic number, because the mean of its divisors is an integer number (4289093340).

Almost surely, 2^21241224134 is an apocalyptic number.

21241224134 is a deficient number, since it is larger than the sum of its proper divisors (13071522586).

21241224134 is a wasteful number, since it uses less digits than its factorization.

21241224134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816970174.

The product of its digits is 3072, while the sum is 26.

Adding to 21241224134 its reverse (43142214212), we get a palindrome (64383438346).

The spelling of 21241224134 in words is "twenty-one billion, two hundred forty-one million, two hundred twenty-four thousand, one hundred thirty-four".