119491221 has 4 divisors (see below), whose sum is σ = 159321632. Its totient is φ = 79660812.

The previous prime is 119491201. The next prime is 119491237. The reversal of 119491221 is 122194911.

It is a happy number.

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: 122194911 = 3 ⋅40731637.

It is not a de Polignac number, because 119491221 - 2⁵ = 119491189 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 (119491201) 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, 19915201 + ... + 19915206.

It is an arithmetic number, because the mean of its divisors is an integer number (39830408).

Almost surely, 2^119491221 is an apocalyptic number.

It is an amenable number.

119491221 is a deficient number, since it is larger than the sum of its proper divisors (39830411).

119491221 is an equidigital number, since it uses as much as digits as its factorization.

119491221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39830410.

The product of its digits is 1296, while the sum is 30.

The square root of 119491221 is about 10931.2040050490. The cubic root of 119491221 is about 492.5443401892.

The spelling of 119491221 in words is "one hundred nineteen million, four hundred ninety-one thousand, two hundred twenty-one".