210110011221 has 16 divisors (see below), whose sum is σ = 305853945408. Its totient is φ = 127239657600.

The previous prime is 210110011219. The next prime is 210110011399. The reversal of 210110011221 is 122110011012.

210110011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210110011221 - 2¹ = 210110011219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210110011197 and 210110011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110011721) 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 15 ways as a sum of consecutive naturals, for example, 2450800 + ... + 2535081.

It is an arithmetic number, because the mean of its divisors is an integer number (19115871588).

Almost surely, 2^210110011221 is an apocalyptic number.

It is an amenable number.

210110011221 is a deficient number, since it is larger than the sum of its proper divisors (95743934187).

210110011221 is a wasteful number, since it uses less digits than its factorization.

210110011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987172.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210110011221 its reverse (122110011012), we get a palindrome (332220022233).

The spelling of 210110011221 in words is "two hundred ten billion, one hundred ten million, eleven thousand, two hundred twenty-one".