202102212228 has 24 divisors (see below), whose sum is σ = 538939232832. Its totient is φ = 57743489184.

The previous prime is 202102212227. The next prime is 202102212233. The reversal of 202102212228 is 822212201202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202102212198 and 202102212207.

It is not an unprimeable number, because it can be changed into a prime (202102212227) by changing a digit.

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, 1202989275 + ... + 1202989442.

It is an arithmetic number, because the mean of its divisors is an integer number (22455801368).

Almost surely, 2^202102212228 is an apocalyptic number.

202102212228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

202102212228 is an abundant number, since it is smaller than the sum of its proper divisors (336837020604).

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

202102212228 is a wasteful number, since it uses less digits than its factorization.

202102212228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405978731 (or 2405978729 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 202102212228 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, two hundred twenty-eight".