120001002011 has 16 divisors (see below), whose sum is σ = 133972650240. Its totient is φ = 106540449120.

The previous prime is 120001001999. The next prime is 120001002019. The reversal of 120001002011 is 110200100021.

It is a cyclic number.

It is not a de Polignac number, because 120001002011 - 2³⁰ = 118927260187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120001002011.

It is not an unprimeable number, because it can be changed into a prime (120001002019) 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 in 15 ways as a sum of consecutive naturals, for example, 5145485 + ... + 5168753.

It is an arithmetic number, because the mean of its divisors is an integer number (8373290640).

Almost surely, 2^120001002011 is an apocalyptic number.

120001002011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120001002011 is a deficient number, since it is larger than the sum of its proper divisors (13971648229).

120001002011 is a wasteful number, since it uses less digits than its factorization.

120001002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34226.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120001002011 its reverse (110200100021), we get a palindrome (230201102032).

The spelling of 120001002011 in words is "one hundred twenty billion, one million, two thousand, eleven".