216214271 has 8 divisors (see below), whose sum is σ = 266109984. Its totient is φ = 171070560.

The previous prime is 216214249. The next prime is 216214307. The reversal of 216214271 is 172412612.

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 216214271 - 2¹⁸ = 215952127 is a prime.

It is a super-2 number, since 2×216214271² = 93497221968122882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216214271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216214171) 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, 1187900 + ... + 1188081.

It is an arithmetic number, because the mean of its divisors is an integer number (33263748).

Almost surely, 2^216214271 is an apocalyptic number.

216214271 is a deficient number, since it is larger than the sum of its proper divisors (49895713).

216214271 is a wasteful number, since it uses less digits than its factorization.

216214271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376001.

The product of its digits is 1344, while the sum is 26.

The square root of 216214271 is about 14704.2262972249. The cubic root of 216214271 is about 600.1983335066.

Adding to 216214271 its reverse (172412612), we get a palindrome (388626883).

The spelling of 216214271 in words is "two hundred sixteen million, two hundred fourteen thousand, two hundred seventy-one".