202248047172 has 12 divisors (see below), whose sum is σ = 471912110096. Its totient is φ = 67416015720.

The previous prime is 202248047171. The next prime is 202248047179. The reversal of 202248047172 is 271740842202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 202248047172.

It is not an unprimeable number, because it can be changed into a prime (202248047171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8427001954 + ... + 8427001977.

Almost surely, 2^202248047172 is an apocalyptic number.

It is an amenable number.

202248047172 is an abundant number, since it is smaller than the sum of its proper divisors (269664062924).

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

202248047172 is a wasteful number, since it uses less digits than its factorization.

202248047172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16854003938 (or 16854003936 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

Adding to 202248047172 its reverse (271740842202), we get a palindrome (473988889374).

The spelling of 202248047172 in words is "two hundred two billion, two hundred forty-eight million, forty-seven thousand, one hundred seventy-two".