110010100121 has 4 divisors (see below), whose sum is σ = 110012947044. Its totient is φ = 110007253200.

The previous prime is 110010100099. The next prime is 110010100157. The reversal of 110010100121 is 121001010011.

It is a happy number.

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 105664653721 + 4345446400 = 325061^2 + 65920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110010100121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110010100099 and 110010100108.

It is not an unprimeable number, because it can be changed into a prime (110010100181) 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, 1364690 + ... + 1443051.

It is an arithmetic number, because the mean of its divisors is an integer number (27503236761).

Almost surely, 2^110010100121 is an apocalyptic number.

It is an amenable number.

110010100121 is a deficient number, since it is larger than the sum of its proper divisors (2846923).

110010100121 is an equidigital number, since it uses as much as digits as its factorization.

110010100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846922.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 110010100121 its reverse (121001010011), we get a palindrome (231011110132).

The spelling of 110010100121 in words is "one hundred ten billion, ten million, one hundred thousand, one hundred twenty-one".