1216150271 has 8 divisors (see below), whose sum is σ = 1463038080. Its totient is φ = 987550488.

The previous prime is 1216150223. The next prime is 1216150307. The reversal of 1216150271 is 1720516121.

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 1216150271 - 2¹⁴ = 1216133887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1216150271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216150211) 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, 4571861 + ... + 4572126.

It is an arithmetic number, because the mean of its divisors is an integer number (182879760).

Almost surely, 2^1216150271 is an apocalyptic number.

1216150271 is a deficient number, since it is larger than the sum of its proper divisors (246887809).

1216150271 is an equidigital number, since it uses as much as digits as its factorization.

1216150271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144013.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1216150271 is about 34873.3461399964. The cubic root of 1216150271 is about 1067.4046251541.

Adding to 1216150271 its reverse (1720516121), we get a palindrome (2936666392).

The spelling of 1216150271 in words is "one billion, two hundred sixteen million, one hundred fifty thousand, two hundred seventy-one".