20121101000012 has 12 divisors (see below), whose sum is σ = 35229559176000. Its totient is φ = 10055512664016.

The previous prime is 20121100999999. The next prime is 20121101000131. The reversal of 20121101000012 is 21000010112102.

It is a junction number, because it is equal to n+sod(n) for n = 20121100999957 and 20121101000002.

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 3 ways as a sum of consecutive naturals, for example, 1259450012 + ... + 1259465987.

It is an arithmetic number, because the mean of its divisors is an integer number (2935796598000).

Almost surely, 2^{20121101000012} is an apocalyptic number.

It is an amenable number.

20121101000012 is a deficient number, since it is larger than the sum of its proper divisors (15108458175988).

20121101000012 is a wasteful number, since it uses less digits than its factorization.

20121101000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518918000 (or 2518917998 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20121101000012 its reverse (21000010112102), we get a palindrome (41121111112114).

The spelling of 20121101000012 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, twelve", and thus it is an aban number.