110121021001 has 32 divisors (see below), whose sum is σ = 115728592896. Its totient is φ = 104696064000.

The previous prime is 110121020993. The next prime is 110121021019. The reversal of 110121021001 is 100120121011.

It is a cyclic number.

It is not a de Polignac number, because 110121021001 - 2³ = 110121020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110121021041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111120616 + ... + 111121606.

It is an arithmetic number, because the mean of its divisors is an integer number (3616518528).

Almost surely, 2^110121021001 is an apocalyptic number.

It is an amenable number.

110121021001 is a deficient number, since it is larger than the sum of its proper divisors (5607571895).

110121021001 is a wasteful number, since it uses less digits than its factorization.

110121021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110121021001 its reverse (100120121011), we get a palindrome (210241142012).

It can be divided in two parts, 1101210 and 21001, that added together give a palindrome (1122211).

The spelling of 110121021001 in words is "one hundred ten billion, one hundred twenty-one million, twenty-one thousand, one".