116751221 has 4 divisors (see below), whose sum is σ = 117884832. Its totient is φ = 115617612.

The previous prime is 116751199. The next prime is 116751247. The reversal of 116751221 is 122157611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122157611 = 1709 ⋅71479.

It is a cyclic number.

It is not a de Polignac number, because 116751221 - 2⁶ = 116751157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116751281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566651 + ... + 566856.

It is an arithmetic number, because the mean of its divisors is an integer number (29471208).

Almost surely, 2^116751221 is an apocalyptic number.

It is an amenable number.

116751221 is a deficient number, since it is larger than the sum of its proper divisors (1133611).

116751221 is a wasteful number, since it uses less digits than its factorization.

116751221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133610.

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

The square root of 116751221 is about 10805.1478934811. The cubic root of 116751221 is about 488.7504201303.

The spelling of 116751221 in words is "one hundred sixteen million, seven hundred fifty-one thousand, two hundred twenty-one".