211212467 has 2 divisors, whose sum is σ = 211212468. Its totient is φ = 211212466.

The previous prime is 211212451. The next prime is 211212487. The reversal of 211212467 is 764212112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211212467 - 2⁴ = 211212451 is a prime.

It is a super-2 number, since 2×211212467² = 89221412432452178, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211212487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606233 + 105606234.

It is an arithmetic number, because the mean of its divisors is an integer number (105606234).

Almost surely, 2^211212467 is an apocalyptic number.

211212467 is a deficient number, since it is larger than the sum of its proper divisors (1).

211212467 is an equidigital number, since it uses as much as digits as its factorization.

211212467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 211212467 is about 14533.1506219402. The cubic root of 211212467 is about 595.5339387154.

Adding to 211212467 its reverse (764212112), we get a palindrome (975424579).

The spelling of 211212467 in words is "two hundred eleven million, two hundred twelve thousand, four hundred sixty-seven".