211434227 has 2 divisors, whose sum is σ = 211434228. Its totient is φ = 211434226.

The previous prime is 211434221. The next prime is 211434233. The reversal of 211434227 is 722434112.

It is a balanced prime because it is at equal distance from previous prime (211434221) and next prime (211434233).

It is a cyclic number.

It is not a de Polignac number, because 211434227 - 2⁶ = 211434163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211434196 and 211434205.

It is not a weakly prime, because it can be changed into another prime (211434221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105717113 + 105717114.

It is an arithmetic number, because the mean of its divisors is an integer number (105717114).

Almost surely, 2^211434227 is an apocalyptic number.

211434227 is a deficient number, since it is larger than the sum of its proper divisors (1).

211434227 is an equidigital number, since it uses as much as digits as its factorization.

211434227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 211434227 is about 14540.7780740922. The cubic root of 211434227 is about 595.7422903890.

Adding to 211434227 its reverse (722434112), we get a palindrome (933868339).

The spelling of 211434227 in words is "two hundred eleven million, four hundred thirty-four thousand, two hundred twenty-seven".