212412667 has 2 divisors, whose sum is σ = 212412668. Its totient is φ = 212412666.

The previous prime is 212412653. The next prime is 212412719. The reversal of 212412667 is 766214212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212412667 - 2⁷ = 212412539 is a prime.

It is a super-2 number, since 2×212412667² = 90238282204105778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212412367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106206333 + 106206334.

It is an arithmetic number, because the mean of its divisors is an integer number (106206334).

Almost surely, 2^212412667 is an apocalyptic number.

212412667 is a deficient number, since it is larger than the sum of its proper divisors (1).

212412667 is an equidigital number, since it uses as much as digits as its factorization.

212412667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 212412667 is about 14574.3839320913. The cubic root of 212412667 is about 596.6598353757.

Adding to 212412667 its reverse (766214212), we get a palindrome (978626879).

The spelling of 212412667 in words is "two hundred twelve million, four hundred twelve thousand, six hundred sixty-seven".