110121202111001 has 4 divisors (see below), whose sum is σ = 110188472242212. Its totient is φ = 110053931979792.

The previous prime is 110121202110989. The next prime is 110121202111003. The reversal of 110121202111001 is 100111202121011.

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 25337179296025 + 84784022814976 = 5033605^2 + 9207824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110121202111001 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 (110121202111003) 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, 33635063150 + ... + 33635066423.

It is an arithmetic number, because the mean of its divisors is an integer number (27547118060553).

Almost surely, 2^{110121202111001} is an apocalyptic number.

It is an amenable number.

110121202111001 is a deficient number, since it is larger than the sum of its proper divisors (67270131211).

110121202111001 is an equidigital number, since it uses as much as digits as its factorization.

110121202111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67270131210.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 110121202111001 its reverse (100111202121011), we get a palindrome (210232404232012).

The spelling of 110121202111001 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred two million, one hundred eleven thousand, one".