212601206 has 4 divisors (see below), whose sum is σ = 318901812. Its totient is φ = 106300602.

The previous prime is 212601199. The next prime is 212601209. The reversal of 212601206 is 602106212.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212601209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53150300 + ... + 53150303.

It is an arithmetic number, because the mean of its divisors is an integer number (79725453).

Almost surely, 2^212601206 is an apocalyptic number.

212601206 is a deficient number, since it is larger than the sum of its proper divisors (106300606).

212601206 is a wasteful number, since it uses less digits than its factorization.

212601206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106300605.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212601206 is about 14580.8506610554. The cubic root of 212601206 is about 596.8363163475.

Adding to 212601206 its reverse (602106212), we get a palindrome (814707418).

The spelling of 212601206 in words is "two hundred twelve million, six hundred one thousand, two hundred six".