21110010211 has 8 divisors (see below), whose sum is σ = 22223548880. Its totient is φ = 19996720128.

The previous prime is 21110010199. The next prime is 21110010221. The reversal of 21110010211 is 11201001112.

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 21110010211 - 2⁵ = 21110010179 is a prime.

It is a super-2 number, since 2×21110010211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110010221) 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, 126955 + ... + 241531.

It is an arithmetic number, because the mean of its divisors is an integer number (2777943610).

Almost surely, 2^21110010211 is an apocalyptic number.

21110010211 is a deficient number, since it is larger than the sum of its proper divisors (1113538669).

21110010211 is a wasteful number, since it uses less digits than its factorization.

21110010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124293.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21110010211 its reverse (11201001112), we get a palindrome (32311011323).

Subtracting from 21110010211 its reverse (11201001112), we obtain a palindrome (9909009099).

The spelling of 21110010211 in words is "twenty-one billion, one hundred ten million, ten thousand, two hundred eleven".