228820102 has 40 divisors (see below), whose sum is σ = 424116216. Its totient is φ = 92264256.

The previous prime is 228820093. The next prime is 228820129. The reversal of 228820102 is 201028822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80233 + ... + 83035.

Almost surely, 2^228820102 is an apocalyptic number.

228820102 is a deficient number, since it is larger than the sum of its proper divisors (195296114).

228820102 is an equidigital number, since it uses as much as digits as its factorization.

228820102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 228820102 is about 15126.8007853611. The cubic root of 228820102 is about 611.6430683165.

Adding to 228820102 its reverse (201028822), we get a palindrome (429848924).

The spelling of 228820102 in words is "two hundred twenty-eight million, eight hundred twenty thousand, one hundred two".