228112212 has 24 divisors (see below), whose sum is σ = 542306016. Its totient is φ = 74602528.

The previous prime is 228112211. The next prime is 228112219. The reversal of 228112212 is 212211822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228112211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178698 + ... + 179969.

It is an arithmetic number, because the mean of its divisors is an integer number (22596084).

Almost surely, 2^228112212 is an apocalyptic number.

It is an amenable number.

228112212 is an abundant number, since it is smaller than the sum of its proper divisors (314193804).

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

228112212 is a wasteful number, since it uses less digits than its factorization.

228112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358727 (or 358725 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 228112212 is about 15103.3841240962. The cubic root of 228112212 is about 611.0116796269.

The spelling of 228112212 in words is "two hundred twenty-eight million, one hundred twelve thousand, two hundred twelve".