21110223344111 has 8 divisors (see below), whose sum is σ = 23037091189200. Its totient is φ = 19184648271040.

The previous prime is 21110223344081. The next prime is 21110223344167. The reversal of 21110223344111 is 11144332201112.

It is a happy number.

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 21110223344111 - 2⁶ = 21110223344047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110223344411) 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, 323158856 + ... + 323224173.

It is an arithmetic number, because the mean of its divisors is an integer number (2879636398650).

Almost surely, 2^{21110223344111} is an apocalyptic number.

21110223344111 is a deficient number, since it is larger than the sum of its proper divisors (1926867845089).

21110223344111 is a wasteful number, since it uses less digits than its factorization.

21110223344111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646386009.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 21110223344111 its reverse (11144332201112), we get a palindrome (32254555545223).

The spelling of 21110223344111 in words is "twenty-one trillion, one hundred ten billion, two hundred twenty-three million, three hundred forty-four thousand, one hundred eleven".