212411047 has 2 divisors, whose sum is σ = 212411048. Its totient is φ = 212411046.

The previous prime is 212411041. The next prime is 212411071. The reversal of 212411047 is 740114212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212411047 - 2¹⁵ = 212378279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212411041) 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, 106205523 + 106205524.

It is an arithmetic number, because the mean of its divisors is an integer number (106205524).

Almost surely, 2^212411047 is an apocalyptic number.

212411047 is a deficient number, since it is larger than the sum of its proper divisors (1).

212411047 is an equidigital number, since it uses as much as digits as its factorization.

212411047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 212411047 is about 14574.3283550221. The cubic root of 212411047 is about 596.6583185305.

Adding to 212411047 its reverse (740114212), we get a palindrome (952525259).

The spelling of 212411047 in words is "two hundred twelve million, four hundred eleven thousand, forty-seven".