120234221 has 2 divisors, whose sum is σ = 120234222. Its totient is φ = 120234220.

The previous prime is 120234199. The next prime is 120234239. The reversal of 120234221 is 122432021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 1729225 = 10886^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120234221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120234221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120239221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60117110 + 60117111.

It is an arithmetic number, because the mean of its divisors is an integer number (60117111).

Almost surely, 2^120234221 is an apocalyptic number.

It is an amenable number.

120234221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120234221 is an equidigital number, since it uses as much as digits as its factorization.

120234221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120234221 is about 10965.1366156560. The cubic root of 120234221 is about 493.5631166692.

Adding to 120234221 its reverse (122432021), we get a palindrome (242666242).

The spelling of 120234221 in words is "one hundred twenty million, two hundred thirty-four thousand, two hundred twenty-one".