214233421 has 2 divisors, whose sum is σ = 214233422. Its totient is φ = 214233420.

The previous prime is 214233419. The next prime is 214233427. The reversal of 214233421 is 124332412.

214233421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149108521 + 65124900 = 12211^2 + 8070^2 .

It is a cyclic number.

It is not a de Polignac number, because 214233421 - 2¹ = 214233419 is a prime.

Together with 214233419, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 214233392 and 214233401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214233427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107116710 + 107116711.

It is an arithmetic number, because the mean of its divisors is an integer number (107116711).

Almost surely, 2^214233421 is an apocalyptic number.

It is an amenable number.

214233421 is a deficient number, since it is larger than the sum of its proper divisors (1).

214233421 is an equidigital number, since it uses as much as digits as its factorization.

214233421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 214233421 is about 14636.7148294964. The cubic root of 214233421 is about 598.3597990240.

Adding to 214233421 its reverse (124332412), we get a palindrome (338565833).

The spelling of 214233421 in words is "two hundred fourteen million, two hundred thirty-three thousand, four hundred twenty-one".