212400211 has 2 divisors, whose sum is σ = 212400212. Its totient is φ = 212400210.

The previous prime is 212400179. The next prime is 212400229. The reversal of 212400211 is 112004212.

It is a happy number.

212400211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212400211 - 2⁵ = 212400179 is a prime.

It is a super-2 number, since 2×212400211² = 90227699265689042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212400191 and 212400200.

It is not a weakly prime, because it can be changed into another prime (212400241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106200105 + 106200106.

It is an arithmetic number, because the mean of its divisors is an integer number (106200106).

Almost surely, 2^212400211 is an apocalyptic number.

212400211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212400211 is an equidigital number, since it uses as much as digits as its factorization.

212400211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212400211 is about 14573.9566007313. The cubic root of 212400211 is about 596.6481723233.

Adding to 212400211 its reverse (112004212), we get a palindrome (324404423).

The spelling of 212400211 in words is "two hundred twelve million, four hundred thousand, two hundred eleven".