110000121211111 has 4 divisors (see below), whose sum is σ = 111392527808800. Its totient is φ = 108607714613424.

The previous prime is 110000121211093. The next prime is 110000121211129. The reversal of 110000121211111 is 111112121000011.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (110000121211093) and next prime (110000121211129).

It is a cyclic number.

It is not a de Polignac number, because 110000121211111 - 2⁷ = 110000121210983 is a prime.

It is a super-2 number, since 2×110000121211111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110000121211091 and 110000121211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000121215111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696203298726 + ... + 696203298883.

It is an arithmetic number, because the mean of its divisors is an integer number (27848131952200).

Almost surely, 2^{110000121211111} is an apocalyptic number.

110000121211111 is a deficient number, since it is larger than the sum of its proper divisors (1392406597689).

110000121211111 is an equidigital number, since it uses as much as digits as its factorization.

110000121211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392406597688.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 110000121211111 its reverse (111112121000011), we get a palindrome (221112242211122).

The spelling of 110000121211111 in words is "one hundred ten trillion, one hundred twenty-one million, two hundred eleven thousand, one hundred eleven".