202120112 has 20 divisors (see below), whose sum is σ = 392686176. Its totient is φ = 100781760.

The previous prime is 202120109. The next prime is 202120129. The reversal of 202120112 is 211021202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202120093 and 202120102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11339 + ... + 23082.

Almost surely, 2^202120112 is an apocalyptic number.

It is an amenable number.

202120112 is a deficient number, since it is larger than the sum of its proper divisors (190566064).

202120112 is a wasteful number, since it uses less digits than its factorization.

202120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34796 (or 34790 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 202120112 is about 14216.8953010142. The cubic root of 202120112 is about 586.8627036551.

Adding to 202120112 its reverse (211021202), we get a palindrome (413141314).

The spelling of 202120112 in words is "two hundred two million, one hundred twenty thousand, one hundred twelve".