201220101112 has 32 divisors (see below), whose sum is σ = 399982529520. Its totient is φ = 94572951040.

The previous prime is 201220101083. The next prime is 201220101209. The reversal of 201220101112 is 211101022102.

It is a junction number, because it is equal to n+sod(n) for n = 201220101092 and 201220101101.

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, 819814 + ... + 1036597.

Almost surely, 2^201220101112 is an apocalyptic number.

It is an amenable number.

201220101112 is a deficient number, since it is larger than the sum of its proper divisors (198762428408).

201220101112 is a wasteful number, since it uses less digits than its factorization.

201220101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857231 (or 1857227 counting only the distinct ones).

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

Adding to 201220101112 its reverse (211101022102), we get a palindrome (412321123214).

The spelling of 201220101112 in words is "two hundred one billion, two hundred twenty million, one hundred one thousand, one hundred twelve".