21110020220211 has 16 divisors (see below), whose sum is σ = 30317038720416. Its totient is φ = 12988546753536.

The previous prime is 21110020220203. The next prime is 21110020220279. The reversal of 21110020220211 is 11202202001112.

It is not a de Polignac number, because 21110020220211 - 2³ = 21110020220203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110020220281) 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, 46331230 + ... + 46784643.

It is an arithmetic number, because the mean of its divisors is an integer number (1894814920026).

Almost surely, 2^{21110020220211} is an apocalyptic number.

21110020220211 is a deficient number, since it is larger than the sum of its proper divisors (9207018500205).

21110020220211 is a wasteful number, since it uses less digits than its factorization.

21110020220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93121702.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110020220211 its reverse (11202202001112), we get a palindrome (32312222221323).

The spelling of 21110020220211 in words is "twenty-one trillion, one hundred ten billion, twenty million, two hundred twenty thousand, two hundred eleven".