20020112122100 has 18 divisors (see below), whose sum is σ = 43443643305174. Its totient is φ = 8008044848800.

The previous prime is 20020112122099. The next prime is 20020112122151. The reversal of 20020112122100 is 122121102002.

It can be written as a sum of positive squares in 3 ways, for example, as 96047927056 + 19924064195044 = 309916^2 + 4463638^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 100100560511 + ... + 100100560710.

Almost surely, 2^{20020112122100} is an apocalyptic number.

20020112122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020112122100 is an abundant number, since it is smaller than the sum of its proper divisors (23423531183074).

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

20020112122100 is a wasteful number, since it uses less digits than its factorization.

20020112122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200201121235 (or 200201121228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20020112122100 its reverse (122121102002), we get a palindrome (20142233224102).

The spelling of 20020112122100 in words is "twenty trillion, twenty billion, one hundred twelve million, one hundred twenty-two thousand, one hundred".