100222021201021 has 4 divisors (see below), whose sum is σ = 100275076799100. Its totient is φ = 100168965602944.

The previous prime is 100222021201013. The next prime is 100222021201063. The reversal of 100222021201021 is 120102120222001.

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 54225344253796 + 45996676947225 = 7363786^2 + 6782085^2 .

It is a cyclic number.

It is not a de Polignac number, because 100222021201021 - 2³ = 100222021201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222021200986 and 100222021201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220021201021) 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, 26527796206 + ... + 26527799983.

It is an arithmetic number, because the mean of its divisors is an integer number (25068769199775).

Almost surely, 2^{100222021201021} is an apocalyptic number.

It is an amenable number.

100222021201021 is a deficient number, since it is larger than the sum of its proper divisors (53055598079).

100222021201021 is an equidigital number, since it uses as much as digits as its factorization.

100222021201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53055598078.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100222021201021 its reverse (120102120222001), we get a palindrome (220324141423022).

The spelling of 100222021201021 in words is "one hundred trillion, two hundred twenty-two billion, twenty-one million, two hundred one thousand, twenty-one".