212214047 has 2 divisors, whose sum is σ = 212214048. Its totient is φ = 212214046.

The previous prime is 212214019. The next prime is 212214061. The reversal of 212214047 is 740412212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212214047 - 2¹² = 212209951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212214007) 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, 106107023 + 106107024.

It is an arithmetic number, because the mean of its divisors is an integer number (106107024).

Almost surely, 2^212214047 is an apocalyptic number.

212214047 is a deficient number, since it is larger than the sum of its proper divisors (1).

212214047 is an equidigital number, since it uses as much as digits as its factorization.

212214047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 212214047 is about 14567.5683283107. The cubic root of 212214047 is about 596.4738051431.

Adding to 212214047 its reverse (740412212), we get a palindrome (952626259).

The spelling of 212214047 in words is "two hundred twelve million, two hundred fourteen thousand, forty-seven".