116701221 has 16 divisors (see below), whose sum is σ = 191510144. Its totient is φ = 61556544.

The previous prime is 116701217. The next prime is 116701223. The reversal of 116701221 is 122107611.

It is a happy number.

It is not a de Polignac number, because 116701221 - 2² = 116701217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116701223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213466 + ... + 214011.

It is an arithmetic number, because the mean of its divisors is an integer number (11969384).

Almost surely, 2^116701221 is an apocalyptic number.

It is an amenable number.

116701221 is a deficient number, since it is larger than the sum of its proper divisors (74808923).

116701221 is a wasteful number, since it uses less digits than its factorization.

116701221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427500.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 116701221 is about 10802.8339337416. The cubic root of 116701221 is about 488.6806392459.

Adding to 116701221 its reverse (122107611), we get a palindrome (238808832).

The spelling of 116701221 in words is "one hundred sixteen million, seven hundred one thousand, two hundred twenty-one".