100211121210001 has 4 divisors (see below), whose sum is σ = 100359143546292. Its totient is φ = 100063098873712.

The previous prime is 100211121209963. The next prime is 100211121210043. The reversal of 100211121210001 is 100012121112001.

It is a happy number.

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 99896506790976 + 314614419025 = 9994824^2 + 560905^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211121210001 - 2⁷ = 100211121209873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100211121210071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74011167130 + ... + 74011168483.

It is an arithmetic number, because the mean of its divisors is an integer number (25089785886573).

Almost surely, 2^{100211121210001} is an apocalyptic number.

It is an amenable number.

100211121210001 is a deficient number, since it is larger than the sum of its proper divisors (148022336291).

100211121210001 is an equidigital number, since it uses as much as digits as its factorization.

100211121210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148022336290.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100211121210001 its reverse (100012121112001), we get a palindrome (200223242322002).

The spelling of 100211121210001 in words is "one hundred trillion, two hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, one".