212422601 has 2 divisors, whose sum is σ = 212422602. Its totient is φ = 212422600.

The previous prime is 212422589. The next prime is 212422649. The reversal of 212422601 is 106224212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161671225 + 50751376 = 12715^2 + 7124^2 .

It is a cyclic number.

It is not a de Polignac number, because 212422601 - 2¹⁴ = 212406217 is a prime.

It is a super-2 number, since 2×212422601² = 90246722831210402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212422201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106211300 + 106211301.

It is an arithmetic number, because the mean of its divisors is an integer number (106211301).

Almost surely, 2^212422601 is an apocalyptic number.

It is an amenable number.

212422601 is a deficient number, since it is larger than the sum of its proper divisors (1).

212422601 is an equidigital number, since it uses as much as digits as its factorization.

212422601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 212422601 is about 14574.7247315344. The cubic root of 212422601 is about 596.6691366515.

Adding to 212422601 its reverse (106224212), we get a palindrome (318646813).

The spelling of 212422601 in words is "two hundred twelve million, four hundred twenty-two thousand, six hundred one".