118376854221 has 4 divisors (see below), whose sum is σ = 157835805632. Its totient is φ = 78917902812.

The previous prime is 118376854217. The next prime is 118376854223. The reversal of 118376854221 is 122458673811.

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: 122458673811 = 3 ⋅40819557937.

It is not a de Polignac number, because 118376854221 - 2² = 118376854217 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 (118376854223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19729475701 + ... + 19729475706.

It is an arithmetic number, because the mean of its divisors is an integer number (39458951408).

Almost surely, 2^118376854221 is an apocalyptic number.

It is an amenable number.

118376854221 is a deficient number, since it is larger than the sum of its proper divisors (39458951411).

118376854221 is an equidigital number, since it uses as much as digits as its factorization.

118376854221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39458951410.

The product of its digits is 645120, while the sum is 48.

The spelling of 118376854221 in words is "one hundred eighteen billion, three hundred seventy-six million, eight hundred fifty-four thousand, two hundred twenty-one".