212214407 has 2 divisors, whose sum is σ = 212214408. Its totient is φ = 212214406.

The previous prime is 212214397. The next prime is 212214449. The reversal of 212214407 is 704412212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212214407 - 2⁴ = 212214391 is a 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 polite number, since it can be written as a sum of consecutive naturals, namely, 106107203 + 106107204.

It is an arithmetic number, because the mean of its divisors is an integer number (106107204).

Almost surely, 2^212214407 is an apocalyptic number.

212214407 is a deficient number, since it is larger than the sum of its proper divisors (1).

212214407 is an equidigital number, since it uses as much as digits as its factorization.

212214407 is an evil number, because the sum of its binary digits is even.

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

The square root of 212214407 is about 14567.5806845200. The cubic root of 212214407 is about 596.4741424291.

Adding to 212214407 its reverse (704412212), we get a palindrome (916626619).

The spelling of 212214407 in words is "two hundred twelve million, two hundred fourteen thousand, four hundred seven".