21441112099 has 4 divisors (see below), whose sum is σ = 23390304120. Its totient is φ = 19491920080.

The previous prime is 21441112067. The next prime is 21441112103. The reversal of 21441112099 is 99021114412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21441112099 - 2⁵ = 21441112067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21441112009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974595994 + ... + 974596015.

It is an arithmetic number, because the mean of its divisors is an integer number (5847576030).

Almost surely, 2^21441112099 is an apocalyptic number.

21441112099 is a deficient number, since it is larger than the sum of its proper divisors (1949192021).

21441112099 is a wasteful number, since it uses less digits than its factorization.

21441112099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949192020.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 21441112099 in words is "twenty-one billion, four hundred forty-one million, one hundred twelve thousand, ninety-nine".