120143221 has 8 divisors (see below), whose sum is σ = 133214688. Its totient is φ = 107430000.

The previous prime is 120143207. The next prime is 120143239. The reversal of 120143221 is 122341021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120143221 - 2⁹ = 120142709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120143195 and 120143204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120143291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88855 + ... + 90196.

It is an arithmetic number, because the mean of its divisors is an integer number (16651836).

Almost surely, 2^120143221 is an apocalyptic number.

120143221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120143221 is a deficient number, since it is larger than the sum of its proper divisors (13071467).

120143221 is a wasteful number, since it uses less digits than its factorization.

120143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179123.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120143221 is about 10960.9863151087. The cubic root of 120143221 is about 493.4385664947.

Adding to 120143221 its reverse (122341021), we get a palindrome (242484242).

It can be divided in two parts, 120 and 143221, that added together give a palindrome (143341).

The spelling of 120143221 in words is "one hundred twenty million, one hundred forty-three thousand, two hundred twenty-one".