21200102100011 has 16 divisors (see below), whose sum is σ = 22481382483360. Its totient is φ = 19935404133120.

The previous prime is 21200102100007. The next prime is 21200102100029. The reversal of 21200102100011 is 11000120100212.

It is not a de Polignac number, because 21200102100011 - 2² = 21200102100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21200102099965 and 21200102100001.

It is not an unprimeable number, because it can be changed into a prime (21200102100031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22286945 + ... + 23218701.

It is an arithmetic number, because the mean of its divisors is an integer number (1405086405210).

Almost surely, 2^{21200102100011} is an apocalyptic number.

21200102100011 is a deficient number, since it is larger than the sum of its proper divisors (1281280383349).

21200102100011 is a wasteful number, since it uses less digits than its factorization.

21200102100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940654.

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

Adding to 21200102100011 its reverse (11000120100212), we get a palindrome (32200222200223).

The spelling of 21200102100011 in words is "twenty-one trillion, two hundred billion, one hundred two million, one hundred thousand, eleven".