100101221201 has 4 divisors (see below), whose sum is σ = 100654266804. Its totient is φ = 99548175600.

The previous prime is 100101221197. The next prime is 100101221237. The reversal of 100101221201 is 102122101001.

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 1017291025 + 99083930176 = 31895^2 + 314776^2 .

It is a cyclic number.

It is not a de Polignac number, because 100101221201 - 2² = 100101221197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100101221291) 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, 276522530 + ... + 276522891.

It is an arithmetic number, because the mean of its divisors is an integer number (25163566701).

Almost surely, 2^100101221201 is an apocalyptic number.

It is an amenable number.

100101221201 is a deficient number, since it is larger than the sum of its proper divisors (553045603).

100101221201 is an equidigital number, since it uses as much as digits as its factorization.

100101221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553045602.

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

Adding to 100101221201 its reverse (102122101001), we get a palindrome (202223322202).

The spelling of 100101221201 in words is "one hundred billion, one hundred one million, two hundred twenty-one thousand, two hundred one".