120103221 has 16 divisors (see below), whose sum is σ = 187961984. Its totient is φ = 66775104.

The previous prime is 120103213. The next prime is 120103223. The reversal of 120103221 is 122301021.

It is not a de Polignac number, because 120103221 - 2³ = 120103213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120103197 and 120103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120103223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76510 + ... + 78063.

It is an arithmetic number, because the mean of its divisors is an integer number (11747624).

Almost surely, 2^120103221 is an apocalyptic number.

It is an amenable number.

120103221 is a deficient number, since it is larger than the sum of its proper divisors (67858763).

120103221 is a wasteful number, since it uses less digits than its factorization.

120103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154620.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120103221 is about 10959.1615098966. The cubic root of 120103221 is about 493.3837992668.

Adding to 120103221 its reverse (122301021), we get a palindrome (242404242).

The spelling of 120103221 in words is "one hundred twenty million, one hundred three thousand, two hundred twenty-one".