212270071 has 8 divisors (see below), whose sum is σ = 240630320. Its totient is φ = 185628672.

The previous prime is 212270063. The next prime is 212270081. The reversal of 212270071 is 170072212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212270071 - 2³ = 212270063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212270021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429450 + ... + 429943.

It is an arithmetic number, because the mean of its divisors is an integer number (30078790).

Almost surely, 2^212270071 is an apocalyptic number.

212270071 is a deficient number, since it is larger than the sum of its proper divisors (28360249).

212270071 is a wasteful number, since it uses less digits than its factorization.

212270071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859425.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 212270071 is about 14569.4911029864. The cubic root of 212270071 is about 596.5262897433.

The spelling of 212270071 in words is "two hundred twelve million, two hundred seventy thousand, seventy-one".