214021331 has 8 divisors (see below), whose sum is σ = 216403200. Its totient is φ = 211645512.

The previous prime is 214021321. The next prime is 214021337. The reversal of 214021331 is 133120412.

214021331 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 214021331 - 2⁶ = 214021267 is a prime.

It is a super-2 number, since 2×214021331² = 91610260246023122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214021337) 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, 125120 + ... + 126818.

It is an arithmetic number, because the mean of its divisors is an integer number (27050400).

Almost surely, 2^214021331 is an apocalyptic number.

214021331 is a deficient number, since it is larger than the sum of its proper divisors (2381869).

214021331 is a wasteful number, since it uses less digits than its factorization.

214021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 214021331 is about 14629.4678987310. The cubic root of 214021331 is about 598.1622761056.

Adding to 214021331 its reverse (133120412), we get a palindrome (347141743).

The spelling of 214021331 in words is "two hundred fourteen million, twenty-one thousand, three hundred thirty-one".