20020122200100 has 144 divisors (see below), whose sum is σ = 63297353085120. Its totient is φ = 4845178060800.

The previous prime is 20020122200063. The next prime is 20020122200131. The reversal of 20020122200100 is 100222102002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3158365 + ... + 7072164.

It is an arithmetic number, because the mean of its divisors is an integer number (439564951980).

Almost surely, 2^{20020122200100} is an apocalyptic number.

20020122200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020122200100 is an abundant number, since it is smaller than the sum of its proper divisors (43277230885020).

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

20020122200100 is a wasteful number, since it uses less digits than its factorization.

20020122200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231150 (or 10231143 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020122200100 its reverse (100222102002), we get a palindrome (20120344302102).

The spelling of 20020122200100 in words is "twenty trillion, twenty billion, one hundred twenty-two million, two hundred thousand, one hundred".