212205039 has 4 divisors (see below), whose sum is σ = 282940056. Its totient is φ = 141470024.

The previous prime is 212205023. The next prime is 212205109. The reversal of 212205039 is 930502212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212205039 - 2⁴ = 212205023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35367504 + ... + 35367509.

It is an arithmetic number, because the mean of its divisors is an integer number (70735014).

Almost surely, 2^212205039 is an apocalyptic number.

212205039 is a deficient number, since it is larger than the sum of its proper divisors (70735017).

212205039 is an equidigital number, since it uses as much as digits as its factorization.

212205039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70735016.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 212205039 is about 14567.2591450829. The cubic root of 212205039 is about 596.4653653750.

The spelling of 212205039 in words is "two hundred twelve million, two hundred five thousand, thirty-nine".