211214461 has 2 divisors, whose sum is σ = 211214462. Its totient is φ = 211214460.

The previous prime is 211214401. The next prime is 211214473. The reversal of 211214461 is 164412112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200364025 + 10850436 = 14155^2 + 3294^2 .

It is a cyclic number.

It is not a de Polignac number, because 211214461 - 2²¹ = 209117309 is a prime.

It is a super-2 number, since 2×211214461² = 89223097071041042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211214401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105607230 + 105607231.

It is an arithmetic number, because the mean of its divisors is an integer number (105607231).

Almost surely, 2^211214461 is an apocalyptic number.

It is an amenable number.

211214461 is a deficient number, since it is larger than the sum of its proper divisors (1).

211214461 is an equidigital number, since it uses as much as digits as its factorization.

211214461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 211214461 is about 14533.2192235581. The cubic root of 211214461 is about 595.5358128013.

Adding to 211214461 its reverse (164412112), we get a palindrome (375626573).

The spelling of 211214461 in words is "two hundred eleven million, two hundred fourteen thousand, four hundred sixty-one".