2021424204245 has 64 divisors (see below), whose sum is σ = 2684112076800. Its totient is φ = 1457176331520.

The previous prime is 2021424204209. The next prime is 2021424204259. The reversal of 2021424204245 is 5424024241202.

It is not a de Polignac number, because 2021424204245 - 2¹⁰ = 2021424203221 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15203324 + ... + 15335706.

It is an arithmetic number, because the mean of its divisors is an integer number (41939251200).

Almost surely, 2^{2021424204245} is an apocalyptic number.

It is an amenable number.

2021424204245 is a deficient number, since it is larger than the sum of its proper divisors (662687872555).

2021424204245 is a wasteful number, since it uses less digits than its factorization.

2021424204245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132570.

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 2021424204245 its reverse (5424024241202), we get a palindrome (7445448445447).

The spelling of 2021424204245 in words is "two trillion, twenty-one billion, four hundred twenty-four million, two hundred four thousand, two hundred forty-five".