212270073 has 16 divisors (see below), whose sum is σ = 293955840. Its totient is φ = 136135296.

The previous prime is 212270063. The next prime is 212270081. The reversal of 212270073 is 370072212.

It is not a de Polignac number, because 212270073 - 2¹⁰ = 212269049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212270063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 865 + ... + 20622.

It is an arithmetic number, because the mean of its divisors is an integer number (18372240).

Almost surely, 2^212270073 is an apocalyptic number.

It is an amenable number.

212270073 is a deficient number, since it is larger than the sum of its proper divisors (81685767).

212270073 is a wasteful number, since it uses less digits than its factorization.

212270073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21616.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 212270073 is about 14569.4911716230. The cubic root of 212270073 is about 596.5262916168.

The spelling of 212270073 in words is "two hundred twelve million, two hundred seventy thousand, seventy-three".