100100221201 has 4 divisors (see below), whose sum is σ = 100104692404. Its totient is φ = 100095750000.

The previous prime is 100100221159. The next prime is 100100221237. The reversal of 100100221201 is 102122001001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102122001001 = 3413 ⋅29921477.

It can be written as a sum of positive squares in 2 ways, for example, as 88685435601 + 11414785600 = 297801^2 + 106840^2 .

It is a cyclic number.

It is not a de Polignac number, because 100100221201 - 2³⁵ = 65740482833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100100221271) 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, 2201850 + ... + 2246851.

It is an arithmetic number, because the mean of its divisors is an integer number (25026173101).

Almost surely, 2^100100221201 is an apocalyptic number.

It is an amenable number.

100100221201 is a deficient number, since it is larger than the sum of its proper divisors (4471203).

100100221201 is an equidigital number, since it uses as much as digits as its factorization.

100100221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471202.

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

Adding to 100100221201 its reverse (102122001001), we get a palindrome (202222222202).

The spelling of 100100221201 in words is "one hundred billion, one hundred million, two hundred twenty-one thousand, two hundred one".