120500221 has 2 divisors, whose sum is σ = 120500222. Its totient is φ = 120500220.

The previous prime is 120500213. The next prime is 120500227. The reversal of 120500221 is 122005021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93605625 + 26894596 = 9675^2 + 5186^2 .

It is a cyclic number.

It is not a de Polignac number, because 120500221 - 2³ = 120500213 is a prime.

It is a super-2 number, since 2×120500221² = 29040606522097682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120500227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60250110 + 60250111.

It is an arithmetic number, because the mean of its divisors is an integer number (60250111).

Almost surely, 2^120500221 is an apocalyptic number.

It is an amenable number.

120500221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120500221 is an equidigital number, since it uses as much as digits as its factorization.

120500221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 120500221 is about 10977.2592663196. The cubic root of 120500221 is about 493.9268264590.

Adding to 120500221 its reverse (122005021), we get a palindrome (242505242).

The spelling of 120500221 in words is "one hundred twenty million, five hundred thousand, two hundred twenty-one".