21414442011 has 8 divisors (see below), whose sum is σ = 29324281104. Its totient is φ = 13890448800.

The previous prime is 21414442001. The next prime is 21414442051. The reversal of 21414442011 is 11024441412.

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

It is not a de Polignac number, because 21414442011 - 2¹⁰ = 21414440987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21414442001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96461340 + ... + 96461561.

It is an arithmetic number, because the mean of its divisors is an integer number (3665535138).

Almost surely, 2^21414442011 is an apocalyptic number.

21414442011 is a deficient number, since it is larger than the sum of its proper divisors (7909839093).

21414442011 is a wasteful number, since it uses less digits than its factorization.

21414442011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192922941.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21414442011 its reverse (11024441412), we get a palindrome (32438883423).

The spelling of 21414442011 in words is "twenty-one billion, four hundred fourteen million, four hundred forty-two thousand, eleven".