119818221 has 4 divisors (see below), whose sum is σ = 159757632. Its totient is φ = 79878812.

The previous prime is 119818207. The next prime is 119818267. The reversal of 119818221 is 122818911.

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.

It is a cyclic number.

It is not a de Polignac number, because 119818221 - 2⁵ = 119818189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119818271) 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, 19969701 + ... + 19969706.

It is an arithmetic number, because the mean of its divisors is an integer number (39939408).

Almost surely, 2^119818221 is an apocalyptic number.

It is an amenable number.

119818221 is a deficient number, since it is larger than the sum of its proper divisors (39939411).

119818221 is an equidigital number, since it uses as much as digits as its factorization.

119818221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39939410.

The product of its digits is 2304, while the sum is 33.

The square root of 119818221 is about 10946.1509673492. The cubic root of 119818221 is about 492.9932303530.

It can be divided in two parts, 11981 and 8221, that added together give a palindrome (20202).

The spelling of 119818221 in words is "one hundred nineteen million, eight hundred eighteen thousand, two hundred twenty-one".