20021001120112 has 10 divisors (see below), whose sum is σ = 38790689670248. Its totient is φ = 10010500560048.

The previous prime is 20021001120077. The next prime is 20021001120149. The reversal of 20021001120112 is 21102110012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021001120092 and 20021001120101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625656284988 + ... + 625656285019.

Almost surely, 2^{20021001120112} is an apocalyptic number.

It is an amenable number.

20021001120112 is a deficient number, since it is larger than the sum of its proper divisors (18769688550136).

20021001120112 is a wasteful number, since it uses less digits than its factorization.

20021001120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251312570015 (or 1251312570009 counting only the distinct ones).

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

Adding to 20021001120112 its reverse (21102110012002), we get a palindrome (41123111132114).

The spelling of 20021001120112 in words is "twenty trillion, twenty-one billion, one million, one hundred twenty thousand, one hundred twelve".