120641021066 has 4 divisors (see below), whose sum is σ = 180961531602. Its totient is φ = 60320510532.

The previous prime is 120641021057. The next prime is 120641021173. The reversal of 120641021066 is 660120146021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66317065441 + 54323955625 = 257521^2 + 233075^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30160255265 + ... + 30160255268.

Almost surely, 2^120641021066 is an apocalyptic number.

120641021066 is a deficient number, since it is larger than the sum of its proper divisors (60320510536).

120641021066 is an equidigital number, since it uses as much as digits as its factorization.

120641021066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60320510535.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 120641021066 its reverse (660120146021), we get a palindrome (780761167087).

The spelling of 120641021066 in words is "one hundred twenty billion, six hundred forty-one million, twenty-one thousand, sixty-six".