20100100012112 has 20 divisors (see below), whose sum is σ = 39413147917920. Its totient is φ = 9928965065568.

The previous prime is 20100100012079. The next prime is 20100100012121. The reversal of 20100100012112 is 21121000100102.

It is a junction number, because it is equal to n+sod(n) for n = 20100100012093 and 20100100012102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7567807412 + ... + 7567810067.

It is an arithmetic number, because the mean of its divisors is an integer number (1970657395896).

Almost surely, 2^{20100100012112} is an apocalyptic number.

It is an amenable number.

20100100012112 is a deficient number, since it is larger than the sum of its proper divisors (19313047905808).

20100100012112 is a wasteful number, since it uses less digits than its factorization.

20100100012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135617570 (or 15135617564 counting only the distinct ones).

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

Adding to 20100100012112 its reverse (21121000100102), we get a palindrome (41221100112214).

The spelling of 20100100012112 in words is "twenty trillion, one hundred billion, one hundred million, twelve thousand, one hundred twelve".