120220189 has 2 divisors, whose sum is σ = 120220190. Its totient is φ = 120220188.

The previous prime is 120220187. The next prime is 120220211. The reversal of 120220189 is 981022021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73188025 + 47032164 = 8555^2 + 6858^2 .

It is a cyclic number.

It is not a de Polignac number, because 120220189 - 2¹ = 120220187 is a prime.

Together with 120220187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120220181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110094 + 60110095.

It is an arithmetic number, because the mean of its divisors is an integer number (60110095).

Almost surely, 2^120220189 is an apocalyptic number.

It is an amenable number.

120220189 is a deficient number, since it is larger than the sum of its proper divisors (1).

120220189 is an equidigital number, since it uses as much as digits as its factorization.

120220189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 120220189 is about 10964.4967508774. The cubic root of 120220189 is about 493.5439154051.

It can be divided in two parts, 120220 and 189, that added together give a square (120409 = 347²).

The spelling of 120220189 in words is "one hundred twenty million, two hundred twenty thousand, one hundred eighty-nine".