120223421 has 4 divisors (see below), whose sum is σ = 120961152. Its totient is φ = 119485692.

The previous prime is 120223417. The next prime is 120223423. The reversal of 120223421 is 124322021.

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: 124322021 = 109 ⋅1140569.

It is a cyclic number.

It is not a de Polignac number, because 120223421 - 2² = 120223417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120223421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120223423) 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, 368621 + ... + 368946.

It is an arithmetic number, because the mean of its divisors is an integer number (30240288).

Almost surely, 2^120223421 is an apocalyptic number.

It is an amenable number.

120223421 is a deficient number, since it is larger than the sum of its proper divisors (737731).

120223421 is an equidigital number, since it uses as much as digits as its factorization.

120223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737730.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120223421 is about 10964.6441346721. The cubic root of 120223421 is about 493.5483381776.

Adding to 120223421 its reverse (124322021), we get a palindrome (244545442).

The spelling of 120223421 in words is "one hundred twenty million, two hundred twenty-three thousand, four hundred twenty-one".