21100202210011 has 8 divisors (see below), whose sum is σ = 21613560352560. Its totient is φ = 20587873875072.

The previous prime is 21100202209997. The next prime is 21100202210029. The reversal of 21100202210011 is 11001220200112.

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 21100202210011 - 2⁴³ = 12304109187803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21100202209973 and 21100202210000.

It is not an unprimeable number, because it can be changed into a prime (21100202214011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257410426 + ... + 257492383.

It is an arithmetic number, because the mean of its divisors is an integer number (2701695044070).

Almost surely, 2^{21100202210011} is an apocalyptic number.

21100202210011 is a deficient number, since it is larger than the sum of its proper divisors (513358142549).

21100202210011 is an equidigital number, since it uses as much as digits as its factorization.

21100202210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514903805.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21100202210011 its reverse (11001220200112), we get a palindrome (32101422410123).

The spelling of 21100202210011 in words is "twenty-one trillion, one hundred billion, two hundred two million, two hundred ten thousand, eleven".