110012211112121 has 4 divisors (see below), whose sum is σ = 111519227702772. Its totient is φ = 108505194521472.

The previous prime is 110012211112093. The next prime is 110012211112129. The reversal of 110012211112121 is 121211112210011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84394795448896 + 25617415663225 = 9186664^2 + 5061365^2 .

It is a cyclic number.

It is not a de Polignac number, because 110012211112121 - 2¹⁰ = 110012211111097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110012211112121.

It is not an unprimeable number, because it can be changed into a prime (110012211112129) 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, 753508295216 + ... + 753508295361.

It is an arithmetic number, because the mean of its divisors is an integer number (27879806925693).

Almost surely, 2^{110012211112121} is an apocalyptic number.

It is an amenable number.

110012211112121 is a deficient number, since it is larger than the sum of its proper divisors (1507016590651).

110012211112121 is an equidigital number, since it uses as much as digits as its factorization.

110012211112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507016590650.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 110012211112121 its reverse (121211112210011), we get a palindrome (231223323322132).

The spelling of 110012211112121 in words is "one hundred ten trillion, twelve billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-one".