214332021 has 16 divisors (see below), whose sum is σ = 320500800. Its totient is φ = 141550704.

The previous prime is 214332017. The next prime is 214332043. The reversal of 214332021 is 120233412.

It is not a de Polignac number, because 214332021 - 2² = 214332017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 214331985 and 214332003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214332061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34206 + ... + 39983.

It is an arithmetic number, because the mean of its divisors is an integer number (20031300).

Almost surely, 2^214332021 is an apocalyptic number.

It is an amenable number.

214332021 is a deficient number, since it is larger than the sum of its proper divisors (106168779).

214332021 is a wasteful number, since it uses less digits than its factorization.

214332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74305 (or 74299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 214332021 is about 14640.0826841927. The cubic root of 214332021 is about 598.4515824426.

Adding to 214332021 its reverse (120233412), we get a palindrome (334565433).

The spelling of 214332021 in words is "two hundred fourteen million, three hundred thirty-two thousand, twenty-one".