20244021105 has 64 divisors (see below), whose sum is σ = 42508339200. Its totient is φ = 7970296320.

The previous prime is 20244021103. The next prime is 20244021157. The reversal of 20244021105 is 50112044202.

It is not a de Polignac number, because 20244021105 - 2¹ = 20244021103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20244021101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 439300 + ... + 483189.

It is an arithmetic number, because the mean of its divisors is an integer number (664192800).

Almost surely, 2^20244021105 is an apocalyptic number.

It is an amenable number.

20244021105 is an abundant number, since it is smaller than the sum of its proper divisors (22264318095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20244021105 is a wasteful number, since it uses less digits than its factorization.

20244021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922534.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20244021105 its reverse (50112044202), we get a palindrome (70356065307).

The spelling of 20244021105 in words is "twenty billion, two hundred forty-four million, twenty-one thousand, one hundred five".