20211041024420 has 24 divisors (see below), whose sum is σ = 42443894171448. Its totient is φ = 8084281548800.

The previous prime is 20211041024401. The next prime is 20211041024437. The reversal of 20211041024420 is 2442014011202.

It can be written as a sum of positive squares in 4 ways, for example, as 6468954775396 + 13742086249024 = 2543414^2 + 3707032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7195511 + ... + 9601950.

It is an arithmetic number, because the mean of its divisors is an integer number (1768495590477).

Almost surely, 2^{20211041024420} is an apocalyptic number.

20211041024420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211041024420 is an abundant number, since it is smaller than the sum of its proper divisors (22232853147028).

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

20211041024420 is a wasteful number, since it uses less digits than its factorization.

20211041024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857631 (or 16857629 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20211041024420 its reverse (2442014011202), we get a palindrome (22653055035622).

The spelling of 20211041024420 in words is "twenty trillion, two hundred eleven billion, forty-one million, twenty-four thousand, four hundred twenty".