210334421 has 12 divisors (see below), whose sum is σ = 244796076. Its totient is φ = 179963520.

The previous prime is 210334417. The next prime is 210334429. The reversal of 210334421 is 124433012.

210334421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181872196 + 28462225 = 13486^2 + 5335^2 .

It is not a de Polignac number, because 210334421 - 2² = 210334417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210334393 and 210334402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210334429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49070 + ... + 53183.

It is an arithmetic number, because the mean of its divisors is an integer number (20399673).

Almost surely, 2^210334421 is an apocalyptic number.

It is an amenable number.

210334421 is a deficient number, since it is larger than the sum of its proper divisors (34461655).

210334421 is a wasteful number, since it uses less digits than its factorization.

210334421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102292 (or 102281 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 210334421 is about 14502.9107768062. The cubic root of 210334421 is about 594.7075473545.

Adding to 210334421 its reverse (124433012), we get a palindrome (334767433).

The spelling of 210334421 in words is "two hundred ten million, three hundred thirty-four thousand, four hundred twenty-one".