120221233009 has 2 divisors, whose sum is σ = 120221233010. Its totient is φ = 120221233008.

The previous prime is 120221233007. The next prime is 120221233031. The reversal of 120221233009 is 900332122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70211750625 + 50009482384 = 264975^2 + 223628^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221233009 - 2¹ = 120221233007 is a prime.

Together with 120221233007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120221233007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110616504 + 60110616505.

It is an arithmetic number, because the mean of its divisors is an integer number (60110616505).

Almost surely, 2^120221233009 is an apocalyptic number.

It is an amenable number.

120221233009 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221233009 is an equidigital number, since it uses as much as digits as its factorization.

120221233009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 120221233009 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred thirty-three thousand, nine".