214221131 has 8 divisors (see below), whose sum is σ = 229372560. Its totient is φ = 199353088.

The previous prime is 214221113. The next prime is 214221167. The reversal of 214221131 is 131122412.

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 214221131 - 2¹⁰ = 214220107 is a prime.

It is a super-2 number, since 2×214221131² = 91781385933838322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214221331) 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, 69281 + ... + 72306.

It is an arithmetic number, because the mean of its divisors is an integer number (28671570).

Almost surely, 2^214221131 is an apocalyptic number.

214221131 is a deficient number, since it is larger than the sum of its proper divisors (15151429).

214221131 is a wasteful number, since it uses less digits than its factorization.

214221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141693.

The product of its digits is 96, while the sum is 17.

The square root of 214221131 is about 14636.2949888283. The cubic root of 214221131 is about 598.3483567033.

Adding to 214221131 its reverse (131122412), we get a palindrome (345343543).

The spelling of 214221131 in words is "two hundred fourteen million, two hundred twenty-one thousand, one hundred thirty-one".