110210101221 has 32 divisors (see below), whose sum is σ = 161979753600. Its totient is φ = 66097152000.

The previous prime is 110210101147. The next prime is 110210101223. The reversal of 110210101221 is 122101012011.

It is not a de Polignac number, because 110210101221 - 2²¹ = 110208004069 is a prime.

It is a super-2 number, since 2×110210101221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110210101197 and 110210101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110210101223) 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 31 ways as a sum of consecutive naturals, for example, 7034805 + ... + 7050453.

It is an arithmetic number, because the mean of its divisors is an integer number (5061867300).

Almost surely, 2^110210101221 is an apocalyptic number.

110210101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110210101221 is a deficient number, since it is larger than the sum of its proper divisors (51769652379).

110210101221 is a wasteful number, since it uses less digits than its factorization.

110210101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17877.

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

Adding to 110210101221 its reverse (122101012011), we get a palindrome (232311113232).

The spelling of 110210101221 in words is "one hundred ten billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".