214030021 has 8 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 212948400.

The previous prime is 214030013. The next prime is 214030043. The reversal of 214030021 is 120030412.

214030021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214030021 - 2³ = 214030013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214029983 and 214030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214030001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304971 + ... + 305671.

It is an arithmetic number, because the mean of its divisors is an integer number (26889408).

Almost surely, 2^214030021 is an apocalyptic number.

It is an amenable number.

214030021 is a deficient number, since it is larger than the sum of its proper divisors (1085243).

214030021 is an equidigital number, since it uses as much as digits as its factorization.

214030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 214030021 is about 14629.7648989996. The cubic root of 214030021 is about 598.1703718092.

Adding to 214030021 its reverse (120030412), we get a palindrome (334060433).

The spelling of 214030021 in words is "two hundred fourteen million, thirty thousand, twenty-one".