2212550217 has 6 divisors (see below), whose sum is σ = 3195905882. Its totient is φ = 1475033472.

The previous prime is 2212550203. The next prime is 2212550231. The reversal of 2212550217 is 7120552122.

2212550217 is a `hidden beast` number, since 22 + 125 + 502 + 17 = 666.

It is an interprime number because it is at equal distance from previous prime (2212550203) and next prime (2212550231).

It can be written as a sum of positive squares in only one way, i.e., 2000236176 + 212314041 = 44724^2 + 14571^2 .

It is not a de Polignac number, because 2212550217 - 2⁴ = 2212550201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212550267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122919448 + ... + 122919465.

Almost surely, 2^2212550217 is an apocalyptic number.

It is an amenable number.

2212550217 is a deficient number, since it is larger than the sum of its proper divisors (983355665).

2212550217 is a wasteful number, since it uses less digits than its factorization.

2212550217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245838919 (or 245838916 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2212550217 is about 47037.7531032255. The cubic root of 2212550217 is about 1303.0598960142.

The spelling of 2212550217 in words is "two billion, two hundred twelve million, five hundred fifty thousand, two hundred seventeen".