120012222011 has 4 divisors (see below), whose sum is σ = 130922424024. Its totient is φ = 109102020000.

The previous prime is 120012221981. The next prime is 120012222017. The reversal of 120012222011 is 110222210021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120012222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012222017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5455100990 + ... + 5455101011.

It is an arithmetic number, because the mean of its divisors is an integer number (32730606006).

Almost surely, 2^120012222011 is an apocalyptic number.

120012222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120012222011 is a deficient number, since it is larger than the sum of its proper divisors (10910202013).

120012222011 is a wasteful number, since it uses less digits than its factorization.

120012222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10910202012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120012222011 its reverse (110222210021), we get a palindrome (230234432032).

The spelling of 120012222011 in words is "one hundred twenty billion, twelve million, two hundred twenty-two thousand, eleven".