212022173 has 16 divisors (see below), whose sum is σ = 238590144. Its totient is φ = 186716160.

The previous prime is 212022157. The next prime is 212022191. The reversal of 212022173 is 371220212.

It is a cyclic number.

It is not a de Polignac number, because 212022173 - 2⁴ = 212022157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103586 + ... + 105612.

It is an arithmetic number, because the mean of its divisors is an integer number (14911884).

Almost surely, 2^212022173 is an apocalyptic number.

It is an amenable number.

212022173 is a deficient number, since it is larger than the sum of its proper divisors (26567971).

212022173 is a wasteful number, since it uses less digits than its factorization.

212022173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 212022173 is about 14560.9811825989. The cubic root of 212022173 is about 596.2939830459.

Adding to 212022173 its reverse (371220212), we get a palindrome (583242385).

The spelling of 212022173 in words is "two hundred twelve million, twenty-two thousand, one hundred seventy-three".