212501371 has 2 divisors, whose sum is σ = 212501372. Its totient is φ = 212501370.

The previous prime is 212501351. The next prime is 212501407. The reversal of 212501371 is 173105212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212501371 - 2¹⁵ = 212468603 is a prime.

It is not a weakly prime, because it can be changed into another prime (212501351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106250685 + 106250686.

It is an arithmetic number, because the mean of its divisors is an integer number (106250686).

Almost surely, 2^212501371 is an apocalyptic number.

212501371 is a deficient number, since it is larger than the sum of its proper divisors (1).

212501371 is an equidigital number, since it uses as much as digits as its factorization.

212501371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 212501371 is about 14577.4267619494. The cubic root of 212501371 is about 596.7428793064.

Adding to 212501371 its reverse (173105212), we get a palindrome (385606583).

The spelling of 212501371 in words is "two hundred twelve million, five hundred one thousand, three hundred seventy-one".