201020202112 has 16 divisors (see below), whose sum is σ = 400469934150. Its totient is φ = 100510100992.

The previous prime is 201020202109. The next prime is 201020202113. The reversal of 201020202112 is 211202020102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 192566502976 + 8453699136 = 438824^2 + 91944^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 201020202092 and 201020202101.

It is not an unprimeable number, because it can be changed into a prime (201020202113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785235037 + ... + 785235292.

Almost surely, 2^201020202112 is an apocalyptic number.

It is an amenable number.

201020202112 is a deficient number, since it is larger than the sum of its proper divisors (199449732038).

201020202112 is an equidigital number, since it uses as much as digits as its factorization.

201020202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570470343 (or 1570470331 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201020202112 its reverse (211202020102), we get a palindrome (412222222214).

The spelling of 201020202112 in words is "two hundred one billion, twenty million, two hundred two thousand, one hundred twelve".