20002105112 has 32 divisors (see below), whose sum is σ = 42692244480. Its totient is φ = 8696566560.

The previous prime is 20002105111. The next prime is 20002105141. The reversal of 20002105112 is 21150120002.

It is a super-2 number, since 2×20002105112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002105111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4939208 + ... + 4943255.

It is an arithmetic number, because the mean of its divisors is an integer number (1334132640).

Almost surely, 2^20002105112 is an apocalyptic number.

20002105112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20002105112 is an abundant number, since it is smaller than the sum of its proper divisors (22690139368).

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

20002105112 is a wasteful number, since it uses less digits than its factorization.

20002105112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882503 (or 9882499 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20002105112 its reverse (21150120002), we get a palindrome (41152225114).

The spelling of 20002105112 in words is "twenty billion, two million, one hundred five thousand, one hundred twelve".