212318801 has 2 divisors, whose sum is σ = 212318802. Its totient is φ = 212318800.

The previous prime is 212318791. The next prime is 212318803. The reversal of 212318801 is 108813212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173580625 + 38738176 = 13175^2 + 6224^2 .

It is a cyclic number.

It is not a de Polignac number, because 212318801 - 2⁶ = 212318737 is a prime.

Together with 212318803, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_11722472 and since 212318801 and 11722472 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (212318803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106159400 + 106159401.

It is an arithmetic number, because the mean of its divisors is an integer number (106159401).

Almost surely, 2^212318801 is an apocalyptic number.

It is an amenable number.

212318801 is a deficient number, since it is larger than the sum of its proper divisors (1).

212318801 is an equidigital number, since it uses as much as digits as its factorization.

212318801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 212318801 is about 14571.1633372219. The cubic root of 212318801 is about 596.5719336438.

The spelling of 212318801 in words is "two hundred twelve million, three hundred eighteen thousand, eight hundred one".