202289812228 has 24 divisors (see below), whose sum is σ = 408585369024. Its totient is φ = 85837260000.

The previous prime is 202289812171. The next prime is 202289812279. The reversal of 202289812228 is 822218982202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35762698 + ... + 35768353.

It is an arithmetic number, because the mean of its divisors is an integer number (17024390376).

Almost surely, 2^202289812228 is an apocalyptic number.

202289812228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

202289812228 is an abundant number, since it is smaller than the sum of its proper divisors (206295556796).

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

202289812228 is a wasteful number, since it uses less digits than its factorization.

202289812228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71531163 (or 71531161 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 202289812228 in words is "two hundred two billion, two hundred eighty-nine million, eight hundred twelve thousand, two hundred twenty-eight".