120221923 has 2 divisors, whose sum is σ = 120221924. Its totient is φ = 120221922.

The previous prime is 120221891. The next prime is 120221929. The reversal of 120221923 is 329122021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120221923 - 2⁵ = 120221891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120221894 and 120221903.

It is not a weakly prime, because it can be changed into another prime (120221929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110961 + 60110962.

It is an arithmetic number, because the mean of its divisors is an integer number (60110962).

Almost surely, 2^120221923 is an apocalyptic number.

120221923 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221923 is an equidigital number, since it uses as much as digits as its factorization.

120221923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 120221923 is about 10964.5758239888. The cubic root of 120221923 is about 493.5462882762.

Adding to 120221923 its reverse (329122021), we get a palindrome (449343944).

The spelling of 120221923 in words is "one hundred twenty million, two hundred twenty-one thousand, nine hundred twenty-three".