21102200101011 has 16 divisors (see below), whose sum is σ = 28668242960640. Its totient is φ = 13802165750880.

The previous prime is 21102200100991. The next prime is 21102200101043. The reversal of 21102200101011 is 11010100220112.

It is not a de Polignac number, because 21102200101011 - 2¹⁹ = 21102199576723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102200101051) 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, 1612276 + ... + 6693566.

It is an arithmetic number, because the mean of its divisors is an integer number (1791765185040).

Almost surely, 2^{21102200101011} is an apocalyptic number.

21102200101011 is a deficient number, since it is larger than the sum of its proper divisors (7566042859629).

21102200101011 is a wasteful number, since it uses less digits than its factorization.

21102200101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107466.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21102200101011 its reverse (11010100220112), we get a palindrome (32112300321123).

The spelling of 21102200101011 in words is "twenty-one trillion, one hundred two billion, two hundred million, one hundred one thousand, eleven".