120454221 has 4 divisors (see below), whose sum is σ = 160605632. Its totient is φ = 80302812.

The previous prime is 120454219. The next prime is 120454241. The reversal of 120454221 is 122454021.

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: 122454021 = 3 ⋅40818007.

It is not a de Polignac number, because 120454221 - 2¹ = 120454219 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 (120454211) 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 3 ways as a sum of consecutive naturals, for example, 20075701 + ... + 20075706.

It is an arithmetic number, because the mean of its divisors is an integer number (40151408).

Almost surely, 2^120454221 is an apocalyptic number.

It is an amenable number.

120454221 is a deficient number, since it is larger than the sum of its proper divisors (40151411).

120454221 is an equidigital number, since it uses as much as digits as its factorization.

120454221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40151410.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120454221 is about 10975.1638256565. The cubic root of 120454221 is about 493.8639675818.

The spelling of 120454221 in words is "one hundred twenty million, four hundred fifty-four thousand, two hundred twenty-one".