100000101222001 has 4 divisors (see below), whose sum is σ = 100251990646132. Its totient is φ = 99748211797872.

The previous prime is 100000101221897. The next prime is 100000101222013. The reversal of 100000101222001 is 100222101000001.

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 76098562455601 + 23901538766400 = 8723449^2 + 4888920^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000101222001 - 2³⁵ = 99965741483633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000101222061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125944711470 + ... + 125944712263.

It is an arithmetic number, because the mean of its divisors is an integer number (25062997661533).

Almost surely, 2^{100000101222001} is an apocalyptic number.

It is an amenable number.

100000101222001 is a deficient number, since it is larger than the sum of its proper divisors (251889424131).

100000101222001 is an equidigital number, since it uses as much as digits as its factorization.

100000101222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251889424130.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100000101222001 its reverse (100222101000001), we get a palindrome (200222202222002).

The spelling of 100000101222001 in words is "one hundred trillion, one hundred one million, two hundred twenty-two thousand, one".