118570221 has 96 divisors (see below), whose sum is σ = 229312512. Its totient is φ = 57214080.

The previous prime is 118570211. The next prime is 118570271. The reversal of 118570221 is 122075811.

It is not a de Polignac number, because 118570221 - 2⁶ = 118570157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118570211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 685291 + ... + 685463.

It is an arithmetic number, because the mean of its divisors is an integer number (2388672).

Almost surely, 2^118570221 is an apocalyptic number.

118570221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118570221 is a deficient number, since it is larger than the sum of its proper divisors (110742291).

118570221 is a wasteful number, since it uses less digits than its factorization.

118570221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 118570221 is about 10888.9954082092. The cubic root of 118570221 is about 491.2756170236.

The spelling of 118570221 in words is "one hundred eighteen million, five hundred seventy thousand, two hundred twenty-one".