212229017 has 48 divisors (see below), whose sum is σ = 293455872. Its totient is φ = 148973760.

The previous prime is 212229001. The next prime is 212229019. The reversal of 212229017 is 710922212.

It is not a de Polignac number, because 212229017 - 2⁴ = 212229001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212229019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 611438 + ... + 611784.

It is an arithmetic number, because the mean of its divisors is an integer number (6113664).

Almost surely, 2^212229017 is an apocalyptic number.

It is an amenable number.

212229017 is a deficient number, since it is larger than the sum of its proper divisors (81226855).

212229017 is a wasteful number, since it uses less digits than its factorization.

212229017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 212229017 is about 14568.0821318388. The cubic root of 212229017 is about 596.4878302953.

The spelling of 212229017 in words is "two hundred twelve million, two hundred twenty-nine thousand, seventeen".