202215228 has 12 divisors (see below), whose sum is σ = 471835560. Its totient is φ = 67405072.

The previous prime is 202215227. The next prime is 202215257. The reversal of 202215228 is 822512202.

202215228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 202215198 and 202215207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202215227) 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, 8425623 + ... + 8425646.

It is an arithmetic number, because the mean of its divisors is an integer number (39319630).

Almost surely, 2^202215228 is an apocalyptic number.

It is an amenable number.

202215228 is an abundant number, since it is smaller than the sum of its proper divisors (269620332).

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

202215228 is a wasteful number, since it uses less digits than its factorization.

202215228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851276 (or 16851274 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 202215228 is about 14220.2400823615. The cubic root of 202215228 is about 586.9547467453.

The spelling of 202215228 in words is "two hundred two million, two hundred fifteen thousand, two hundred twenty-eight".