228103212 has 48 divisors (see below), whose sum is σ = 582996960. Its totient is φ = 69092352.

The previous prime is 228103207. The next prime is 228103223. The reversal of 228103212 is 212301822.

It is a happy number.

228103212 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

228103212 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13363 + ... + 25194.

It is an arithmetic number, because the mean of its divisors is an integer number (12145770).

Almost surely, 2^228103212 is an apocalyptic number.

It is an amenable number.

228103212 is an abundant number, since it is smaller than the sum of its proper divisors (354893748).

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

228103212 is a wasteful number, since it uses less digits than its factorization.

228103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610 (or 38608 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228103212 is about 15103.0861746863. The cubic root of 228103212 is about 611.0036438486.

The spelling of 228103212 in words is "two hundred twenty-eight million, one hundred three thousand, two hundred twelve".