120021102011 has 4 divisors (see below), whose sum is σ = 120042006432. Its totient is φ = 120000197592.

The previous prime is 120021102001. The next prime is 120021102031. The reversal of 120021102011 is 110201120021.

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

It is a cyclic number.

It is not a de Polignac number, because 120021102011 - 2⁶ = 120021101947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021101983 and 120021102001.

It is not an unprimeable number, because it can be changed into a prime (120021102001) 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 3 ways as a sum of consecutive naturals, for example, 10443596 + ... + 10455081.

It is an arithmetic number, because the mean of its divisors is an integer number (30010501608).

Almost surely, 2^120021102011 is an apocalyptic number.

120021102011 is a deficient number, since it is larger than the sum of its proper divisors (20904421).

120021102011 is an equidigital number, since it uses as much as digits as its factorization.

120021102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20904420.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120021102011 its reverse (110201120021), we get a palindrome (230222222032).

The spelling of 120021102011 in words is "one hundred twenty billion, twenty-one million, one hundred two thousand, eleven".