10001220012112 has 40 divisors (see below), whose sum is σ = 23448238520256. Its totient is φ = 4034105550336.

The previous prime is 10001220012079. The next prime is 10001220012143. The reversal of 10001220012112 is 21121002210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001220012092 and 10001220012101.

It is a congruent number.

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, 2626368898 + ... + 2626372705.

Almost surely, 2^{10001220012112} is an apocalyptic number.

It is an amenable number.

10001220012112 is an abundant number, since it is smaller than the sum of its proper divisors (13447018508144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001220012112 is a wasteful number, since it uses less digits than its factorization.

10001220012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252741635 (or 5252741629 counting only the distinct ones).

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

Adding to 10001220012112 its reverse (21121002210001), we get a palindrome (31122222222113).

The spelling of 10001220012112 in words is "ten trillion, one billion, two hundred twenty million, twelve thousand, one hundred twelve".