20001100120012 has 24 divisors (see below), whose sum is σ = 38192918041152. Its totient is φ = 9089266376400.

The previous prime is 20001100119983. The next prime is 20001100120033. The reversal of 20001100120012 is 21002100110002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53380414 + ... + 53753797.

It is an arithmetic number, because the mean of its divisors is an integer number (1591371585048).

Almost surely, 2^{20001100120012} is an apocalyptic number.

20001100120012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20001100120012 is a deficient number, since it is larger than the sum of its proper divisors (18191817921140).

20001100120012 is a wasteful number, since it uses less digits than its factorization.

20001100120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107138469 (or 107138467 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20001100120012 its reverse (21002100110002), we get a palindrome (41003200230014).

The spelling of 20001100120012 in words is "twenty trillion, one billion, one hundred million, one hundred twenty thousand, twelve".