21120200020011 has 8 divisors (see below), whose sum is σ = 28183990595904. Its totient is φ = 14068271395400.

The previous prime is 21120200019983. The next prime is 21120200020021. The reversal of 21120200020011 is 11002000202112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21120200020011 - 2²⁵ = 21120166465579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21120200020021) 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 in 7 ways as a sum of consecutive naturals, for example, 2965483665 + ... + 2965490786.

It is an arithmetic number, because the mean of its divisors is an integer number (3522998824488).

Almost surely, 2^{21120200020011} is an apocalyptic number.

21120200020011 is a deficient number, since it is larger than the sum of its proper divisors (7063790575893).

21120200020011 is a wasteful number, since it uses less digits than its factorization.

21120200020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930975641.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21120200020011 its reverse (11002000202112), we get a palindrome (32122200222123).

The spelling of 21120200020011 in words is "twenty-one trillion, one hundred twenty billion, two hundred million, twenty thousand, eleven".