21102333120011 has 16 divisors (see below), whose sum is σ = 24794131165440. Its totient is φ = 17706409449120.

The previous prime is 21102333119957. The next prime is 21102333120017. The reversal of 21102333120011 is 11002133320112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21102333120011 - 2¹⁰ = 21102333118987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102333120017) 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 15 ways as a sum of consecutive naturals, for example, 6295175 + ... + 9046208.

It is an arithmetic number, because the mean of its divisors is an integer number (1549633197840).

Almost surely, 2^{21102333120011} is an apocalyptic number.

21102333120011 is a deficient number, since it is larger than the sum of its proper divisors (3691798045429).

21102333120011 is a wasteful number, since it uses less digits than its factorization.

21102333120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15351026.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21102333120011 its reverse (11002133320112), we get a palindrome (32104466440123).

The spelling of 21102333120011 in words is "twenty-one trillion, one hundred two billion, three hundred thirty-three million, one hundred twenty thousand, eleven".