20001012012112 has 10 divisors (see below), whose sum is σ = 38751960773498. Its totient is φ = 10000506006048.

The previous prime is 20001012012109. The next prime is 20001012012131. The reversal of 20001012012112 is 21121021010002.

It can be written as a sum of positive squares in only one way, i.e., 19969243940416 + 31768071696 = 4468696^2 + 178236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20001012012092 and 20001012012101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625031625363 + ... + 625031625394.

Almost surely, 2^{20001012012112} is an apocalyptic number.

It is an amenable number.

20001012012112 is a deficient number, since it is larger than the sum of its proper divisors (18750948761386).

20001012012112 is a wasteful number, since it uses less digits than its factorization.

20001012012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250063250765 (or 1250063250759 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20001012012112 its reverse (21121021010002), we get a palindrome (41122033022114).

The spelling of 20001012012112 in words is "twenty trillion, one billion, twelve million, twelve thousand, one hundred twelve".