212089228 has 48 divisors (see below), whose sum is σ = 422795520. Its totient is φ = 92390400.

The previous prime is 212089219. The next prime is 212089231. The reversal of 212089228 is 822980212.

It is a happy number.

212089228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212089193 and 212089202.

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, 64488 + ... + 67696.

It is an arithmetic number, because the mean of its divisors is an integer number (8808240).

Almost surely, 2^212089228 is an apocalyptic number.

It is an amenable number.

212089228 is a deficient number, since it is larger than the sum of its proper divisors (210706292).

212089228 is a wasteful number, since it uses less digits than its factorization.

212089228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298 (or 3296 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 212089228 is about 14563.2835583188. The cubic root of 212089228 is about 596.3568385450.

The spelling of 212089228 in words is "two hundred twelve million, eighty-nine thousand, two hundred twenty-eight".