212020017 has 16 divisors (see below), whose sum is σ = 308689920. Its totient is φ = 128373200.

The previous prime is 212020013. The next prime is 212020019. The reversal of 212020017 is 710020212.

It is a cyclic number.

It is not a de Polignac number, because 212020017 - 2² = 212020013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212019978 and 212020005.

It is not an unprimeable number, because it can be changed into a prime (212020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41092 + ... + 45962.

It is an arithmetic number, because the mean of its divisors is an integer number (19293120).

Almost surely, 2^212020017 is an apocalyptic number.

It is an amenable number.

212020017 is a deficient number, since it is larger than the sum of its proper divisors (96669903).

212020017 is a wasteful number, since it uses less digits than its factorization.

212020017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 212020017 is about 14560.9071489382. The cubic root of 212020017 is about 596.2919618513.

Adding to 212020017 its reverse (710020212), we get a palindrome (922040229).

The spelling of 212020017 in words is "two hundred twelve million, twenty thousand, seventeen".