202012202112 has 128 divisors (see below), whose sum is σ = 613399962240. Its totient is φ = 57703784448.

The previous prime is 202012202009. The next prime is 202012202131. The reversal of 202012202112 is 211202210202.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 202012202091 and 202012202100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16974148 + ... + 16986044.

It is an arithmetic number, because the mean of its divisors is an integer number (4792187205).

Almost surely, 2^202012202112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202012202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306699981120).

202012202112 is an abundant number, since it is smaller than the sum of its proper divisors (411387760128).

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

202012202112 is a wasteful number, since it uses less digits than its factorization.

202012202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238 (or 18226 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202012202112 its reverse (211202210202), we get a palindrome (413214412314).

The spelling of 202012202112 in words is "two hundred two billion, twelve million, two hundred two thousand, one hundred twelve".