110011210121 has 16 divisors (see below), whose sum is σ = 112530412176. Its totient is φ = 107516160000.

The previous prime is 110011210109. The next prime is 110011210159. The reversal of 110011210121 is 121012110011.

It can be written as a sum of positive squares in 8 ways, for example, as 96072102025 + 13939108096 = 309955^2 + 118064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-110011210121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (110011213121) 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, 15023141 + ... + 15030461.

It is an arithmetic number, because the mean of its divisors is an integer number (7033150761).

Almost surely, 2^110011210121 is an apocalyptic number.

It is an amenable number.

110011210121 is a deficient number, since it is larger than the sum of its proper divisors (2519202055).

110011210121 is a wasteful number, since it uses less digits than its factorization.

110011210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 110011210121 its reverse (121012110011), we get a palindrome (231023320132).

The spelling of 110011210121 in words is "one hundred ten billion, eleven million, two hundred ten thousand, one hundred twenty-one".