2212806228 has 48 divisors (see below), whose sum is σ = 5271932736. Its totient is φ = 722229760.

The previous prime is 2212806179. The next prime is 2212806263. The reversal of 2212806228 is 8226082122.

2212806228 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2212806228² = 9793022805351175968, which contains 22 as substring.

It is a congruent number.

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, 102718 + ... + 122378.

It is an arithmetic number, because the mean of its divisors is an integer number (109831932).

Almost surely, 2^2212806228 is an apocalyptic number.

It is an amenable number.

2212806228 is an abundant number, since it is smaller than the sum of its proper divisors (3059126508).

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

2212806228 is a wasteful number, since it uses less digits than its factorization.

2212806228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19864 (or 19862 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 2212806228 is about 47040.4743598531. The cubic root of 2212806228 is about 1303.1101524707.

The spelling of 2212806228 in words is "two billion, two hundred twelve million, eight hundred six thousand, two hundred twenty-eight".