118222261 has 8 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 117268368.

The previous prime is 118222219. The next prime is 118222303. The reversal of 118222261 is 162222811.

It is an interprime number because it is at equal distance from previous prime (118222219) and next prime (118222303).

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 118222261 - 2¹⁷ = 118091189 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 (118222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85800 + ... + 87166.

It is an arithmetic number, because the mean of its divisors is an integer number (14897520).

Almost surely, 2^118222261 is an apocalyptic number.

It is an amenable number.

118222261 is a deficient number, since it is larger than the sum of its proper divisors (957899).

118222261 is a wasteful number, since it uses less digits than its factorization.

118222261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003.

The product of its digits is 768, while the sum is 25.

The square root of 118222261 is about 10873.0060700802. The cubic root of 118222261 is about 490.7945750584.

The spelling of 118222261 in words is "one hundred eighteen million, two hundred twenty-two thousand, two hundred sixty-one".