21122433041 has 4 divisors (see below), whose sum is σ = 21122740800. Its totient is φ = 21122125284.

The previous prime is 21122433029. The next prime is 21122433061. The reversal of 21122433041 is 14033422112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21122433041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21122432998 and 21122433016.

It is not an unprimeable number, because it can be changed into a prime (21122433061) 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 3 ways as a sum of consecutive naturals, for example, 1100 + ... + 205538.

It is an arithmetic number, because the mean of its divisors is an integer number (5280685200).

Almost surely, 2^21122433041 is an apocalyptic number.

It is an amenable number.

21122433041 is a deficient number, since it is larger than the sum of its proper divisors (307759).

21122433041 is a wasteful number, since it uses less digits than its factorization.

21122433041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307758.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21122433041 its reverse (14033422112), we get a palindrome (35155855153).

The spelling of 21122433041 in words is "twenty-one billion, one hundred twenty-two million, four hundred thirty-three thousand, forty-one".