20532622252021 has 32 divisors (see below), whose sum is σ = 23348349812736. Its totient is φ = 17886914208000.

The previous prime is 20532622252013. The next prime is 20532622252063. The reversal of 20532622252021 is 12025222623502.

It is a cyclic number.

It is not a de Polignac number, because 20532622252021 - 2³ = 20532622252013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532622252721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570063405 + ... + 570099421.

It is an arithmetic number, because the mean of its divisors is an integer number (729635931648).

Almost surely, 2^{20532622252021} is an apocalyptic number.

It is an amenable number.

20532622252021 is a deficient number, since it is larger than the sum of its proper divisors (2815727560715).

20532622252021 is a wasteful number, since it uses less digits than its factorization.

20532622252021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52393.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 20532622252021 its reverse (12025222623502), we get a palindrome (32557844875523).

The spelling of 20532622252021 in words is "twenty trillion, five hundred thirty-two billion, six hundred twenty-two million, two hundred fifty-two thousand, twenty-one".