120012221011 has 2 divisors, whose sum is σ = 120012221012. Its totient is φ = 120012221010.

The previous prime is 120012220997. The next prime is 120012221029. The reversal of 120012221011 is 110122210021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120012221011 - 2¹⁹ = 120011696723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120012220982 and 120012221000.

It is not a weakly prime, because it can be changed into another prime (120012221711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006110505 + 60006110506.

It is an arithmetic number, because the mean of its divisors is an integer number (60006110506).

Almost surely, 2^120012221011 is an apocalyptic number.

120012221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012221011 is an equidigital number, since it uses as much as digits as its factorization.

120012221011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120012221011 its reverse (110122210021), we get a palindrome (230134431032).

The spelling of 120012221011 in words is "one hundred twenty billion, twelve million, two hundred twenty-one thousand, eleven".