100220100000001 has 4 divisors (see below), whose sum is σ = 100477735218900. Its totient is φ = 99962464781104.

The previous prime is 100220099999867. The next prime is 100220100000101. The reversal of 100220100000001 is 100000001022001.

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 61492180473025 + 38727919526976 = 7841695^2 + 6223176^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220100000001 - 2¹⁵ = 100220099967233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100220100000001.

It is not an unprimeable number, because it can be changed into a prime (100220100000101) 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, 128817608866 + ... + 128817609643.

It is an arithmetic number, because the mean of its divisors is an integer number (25119433804725).

Almost surely, 2^{100220100000001} is an apocalyptic number.

It is an amenable number.

100220100000001 is a deficient number, since it is larger than the sum of its proper divisors (257635218899).

100220100000001 is an equidigital number, since it uses as much as digits as its factorization.

100220100000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257635218898.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100220100000001 its reverse (100000001022001), we get a palindrome (200220101022002).

The spelling of 100220100000001 in words is "one hundred trillion, two hundred twenty billion, one hundred million, one", and thus it is an aban number.