11110210101221 has 16 divisors (see below), whose sum is σ = 13936670227968. Its totient is φ = 8604194252400.

The previous prime is 11110210101097. The next prime is 11110210101229. The reversal of 11110210101221 is 12210101201111.

It is a cyclic number.

It is not a de Polignac number, because 11110210101221 - 2²⁶ = 11110142992357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110210101196 and 11110210101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110210101229) 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, 442590035 + ... + 442615136.

It is an arithmetic number, because the mean of its divisors is an integer number (871041889248).

Almost surely, 2^{11110210101221} is an apocalyptic number.

11110210101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11110210101221 is a deficient number, since it is larger than the sum of its proper divisors (2826460126747).

11110210101221 is a wasteful number, since it uses less digits than its factorization.

11110210101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885205352.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11110210101221 its reverse (12210101201111), we get a palindrome (23320311302332).

The spelling of 11110210101221 in words is "eleven trillion, one hundred ten billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".