120021200011 has 4 divisors (see below), whose sum is σ = 120022902792. Its totient is φ = 120019497232.

The previous prime is 120021200009. The next prime is 120021200021. The reversal of 120021200011 is 110002120021.

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 120021200011 - 2¹ = 120021200009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021200021) 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, 740881 + ... + 888226.

It is an arithmetic number, because the mean of its divisors is an integer number (30005725698).

Almost surely, 2^120021200011 is an apocalyptic number.

120021200011 is a deficient number, since it is larger than the sum of its proper divisors (1702781).

120021200011 is an equidigital number, since it uses as much as digits as its factorization.

120021200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702780.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120021200011 its reverse (110002120021), we get a palindrome (230023320032).

The spelling of 120021200011 in words is "one hundred twenty billion, twenty-one million, two hundred thousand, eleven".