120140240221 has 2 divisors, whose sum is σ = 120140240222. Its totient is φ = 120140240220.

The previous prime is 120140240219. The next prime is 120140240243. The reversal of 120140240221 is 122042041021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95101924996 + 25038315225 = 308386^2 + 158235^2 .

It is a cyclic number.

It is not a de Polignac number, because 120140240221 - 2¹ = 120140240219 is a prime.

It is a super-2 number, since 2×120140240221² (a number of 23 digits) contains 22 as substring.

Together with 120140240219, 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 (120140240291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60070120110 + 60070120111.

It is an arithmetic number, because the mean of its divisors is an integer number (60070120111).

Almost surely, 2^120140240221 is an apocalyptic number.

It is an amenable number.

120140240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120140240221 is an equidigital number, since it uses as much as digits as its factorization.

120140240221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 120140240221 its reverse (122042041021), we get a palindrome (242182281242).

The spelling of 120140240221 in words is "one hundred twenty billion, one hundred forty million, two hundred forty thousand, two hundred twenty-one".