100201221201221 has 8 divisors (see below), whose sum is σ = 116128578294144. Its totient is φ = 84677088338640.

The previous prime is 100201221201197. The next prime is 100201221201223. The reversal of 100201221201221 is 122102122102001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100201221201221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100201221201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100201221201223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100806057050 + ... + 100806058043.

It is an arithmetic number, because the mean of its divisors is an integer number (14516072286768).

Almost surely, 2^{100201221201221} is an apocalyptic number.

It is an amenable number.

100201221201221 is a deficient number, since it is larger than the sum of its proper divisors (15927357092923).

100201221201221 is an equidigital number, since it uses as much as digits as its factorization.

100201221201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201612115171.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100201221201221 its reverse (122102122102001), we get a palindrome (222303343303222).

The spelling of 100201221201221 in words is "one hundred trillion, two hundred one billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-one".