110121202121 has 4 divisors (see below), whose sum is σ = 125852802432. Its totient is φ = 94389601812.

The previous prime is 110121202109. The next prime is 110121202171. The reversal of 110121202121 is 121202121011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110121202121 - 2¹⁴ = 110121185737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110121202096 and 110121202105.

It is not an unprimeable number, because it can be changed into a prime (110121202171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7865800145 + ... + 7865800158.

It is an arithmetic number, because the mean of its divisors is an integer number (31463200608).

Almost surely, 2^110121202121 is an apocalyptic number.

It is an amenable number.

110121202121 is a deficient number, since it is larger than the sum of its proper divisors (15731600311).

110121202121 is an equidigital number, since it uses as much as digits as its factorization.

110121202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15731600310.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110121202121 its reverse (121202121011), we get a palindrome (231323323132).

The spelling of 110121202121 in words is "one hundred ten billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-one".