116621211 has 8 divisors (see below), whose sum is σ = 177708544. Its totient is φ = 66640680.

The previous prime is 116621191. The next prime is 116621213. The reversal of 116621211 is 112126611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116621211 - 2¹¹ = 116619163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5553391 = 116621211 / (1 + 1 + 6 + 6 + 2 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116621213) 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, 2776675 + ... + 2776716.

It is an arithmetic number, because the mean of its divisors is an integer number (22213568).

Almost surely, 2^116621211 is an apocalyptic number.

116621211 is a deficient number, since it is larger than the sum of its proper divisors (61087333).

116621211 is an equidigital number, since it uses as much as digits as its factorization.

116621211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553401.

The product of its digits is 144, while the sum is 21.

The square root of 116621211 is about 10799.1301038556. The cubic root of 116621211 is about 488.5689343969.

Adding to 116621211 its reverse (112126611), we get a palindrome (228747822).

The spelling of 116621211 in words is "one hundred sixteen million, six hundred twenty-one thousand, two hundred eleven".