110021111111 has 8 divisors (see below), whose sum is σ = 110236600080. Its totient is φ = 109805700928.

The previous prime is 110021111099. The next prime is 110021111129. The reversal of 110021111111 is 111111120011.

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 a de Polignac number, because none of the positive numbers 2^k-110021111111 is a prime.

It is a Duffinian number.

110021111111 is a modest number, since divided by 111111 gives 110021 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 110021111092 and 110021111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021111191) 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, 3321845 + ... + 3354801.

It is an arithmetic number, because the mean of its divisors is an integer number (13779575010).

Almost surely, 2^110021111111 is an apocalyptic number.

110021111111 is a deficient number, since it is larger than the sum of its proper divisors (215488969).

110021111111 is an equidigital number, since it uses as much as digits as its factorization.

110021111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39393.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 110021111111 its reverse (111111120011), we get a palindrome (221132231122).

The spelling of 110021111111 in words is "one hundred ten billion, twenty-one million, one hundred eleven thousand, one hundred eleven".