212700067 has 4 divisors (see below), whose sum is σ = 221947920. Its totient is φ = 203452216.

The previous prime is 212700043. The next prime is 212700091. The reversal of 212700067 is 760007212.

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

It is an interprime number because it is at equal distance from previous prime (212700043) and next prime (212700091).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212700067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212700667) 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, 4623892 + ... + 4623937.

It is an arithmetic number, because the mean of its divisors is an integer number (55486980).

Almost surely, 2^212700067 is an apocalyptic number.

212700067 is a deficient number, since it is larger than the sum of its proper divisors (9247853).

212700067 is an equidigital number, since it uses as much as digits as its factorization.

212700067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247852.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 212700067 is about 14584.2403641739. The cubic root of 212700067 is about 596.9288129876.

Adding to 212700067 its reverse (760007212), we get a palindrome (972707279).

The spelling of 212700067 in words is "two hundred twelve million, seven hundred thousand, sixty-seven".