211225411 has 2 divisors, whose sum is σ = 211225412. Its totient is φ = 211225410.

The previous prime is 211225409. The next prime is 211225423. The reversal of 211225411 is 114522112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211225411 - 2¹ = 211225409 is a prime.

Together with 211225409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211225471) 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, 105612705 + 105612706.

It is an arithmetic number, because the mean of its divisors is an integer number (105612706).

Almost surely, 2^211225411 is an apocalyptic number.

211225411 is a deficient number, since it is larger than the sum of its proper divisors (1).

211225411 is an equidigital number, since it uses as much as digits as its factorization.

211225411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 19.

The square root of 211225411 is about 14533.5959418170. The cubic root of 211225411 is about 595.5461040860.

Adding to 211225411 its reverse (114522112), we get a palindrome (325747523).

The spelling of 211225411 in words is "two hundred eleven million, two hundred twenty-five thousand, four hundred eleven".