110002120102001 has 4 divisors (see below), whose sum is σ = 110002161868452. Its totient is φ = 110002078335552.

The previous prime is 110002120101997. The next prime is 110002120102003. The reversal of 110002120102001 is 100201021200011.

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 65457161113600 + 44544958988401 = 8090560^2 + 6674201^2 .

It is a cyclic number.

It is not a de Polignac number, because 110002120102001 - 2² = 110002120101997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110002120102003) 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, 16646036 + ... + 22295621.

It is an arithmetic number, because the mean of its divisors is an integer number (27500540467113).

Almost surely, 2^{110002120102001} is an apocalyptic number.

It is an amenable number.

110002120102001 is a deficient number, since it is larger than the sum of its proper divisors (41766451).

110002120102001 is an equidigital number, since it uses as much as digits as its factorization.

110002120102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41766450.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110002120102001 its reverse (100201021200011), we get a palindrome (210203141302012).

The spelling of 110002120102001 in words is "one hundred ten trillion, two billion, one hundred twenty million, one hundred two thousand, one".