20201122010020 has 96 divisors (see below), whose sum is σ = 48590490009600. Its totient is φ = 6910703339904.

The previous prime is 20201122010011. The next prime is 20201122010029. The reversal of 20201122010020 is 2001022110202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20201122010011) and next prime (20201122010029).

It is not an unprimeable number, because it can be changed into a prime (20201122010029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649058179 + ... + 649089301.

It is an arithmetic number, because the mean of its divisors is an integer number (506150937600).

Almost surely, 2^{20201122010020} is an apocalyptic number.

20201122010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201122010020 is an abundant number, since it is smaller than the sum of its proper divisors (28389367999580).

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

20201122010020 is a wasteful number, since it uses less digits than its factorization.

20201122010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41297 (or 41295 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201122010020 its reverse (2001022110202), we get a palindrome (22202144120222).

It can be divided in two parts, 20201 and 122010020, that added together give a palindrome (122030221).

The spelling of 20201122010020 in words is "twenty trillion, two hundred one billion, one hundred twenty-two million, ten thousand, twenty".