21110000220211 has 8 divisors (see below), whose sum is σ = 25395488986880. Its totient is φ = 17141955065928.

The previous prime is 21110000220203. The next prime is 21110000220227. The reversal of 21110000220211 is 11202200001112.

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

It is not a de Polignac number, because 21110000220211 - 2³ = 21110000220203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21110000220191 and 21110000220200.

It is not an unprimeable number, because it can be changed into a prime (21110000020211) 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, 79360902951 + ... + 79360903216.

It is an arithmetic number, because the mean of its divisors is an integer number (3174436123360).

Almost surely, 2^{21110000220211} is an apocalyptic number.

21110000220211 is a deficient number, since it is larger than the sum of its proper divisors (4285488766669).

21110000220211 is a wasteful number, since it uses less digits than its factorization.

21110000220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158721806193.

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

Adding to 21110000220211 its reverse (11202200001112), we get a palindrome (32312200221323).

The spelling of 21110000220211 in words is "twenty-one trillion, one hundred ten billion, two hundred twenty thousand, two hundred eleven".