100002201011221 has 4 divisors (see below), whose sum is σ = 100400616154944. Its totient is φ = 99603785867500.

The previous prime is 100002201011147. The next prime is 100002201011239. The reversal of 100002201011221 is 122110102200001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100002201011221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100002201011291) 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, 199207571485 + ... + 199207571986.

It is an arithmetic number, because the mean of its divisors is an integer number (25100154038736).

Almost surely, 2^{100002201011221} is an apocalyptic number.

It is an amenable number.

100002201011221 is a deficient number, since it is larger than the sum of its proper divisors (398415143723).

100002201011221 is an equidigital number, since it uses as much as digits as its factorization.

100002201011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398415143722.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100002201011221 its reverse (122110102200001), we get a palindrome (222112303211222).

The spelling of 100002201011221 in words is "one hundred trillion, two billion, two hundred one million, eleven thousand, two hundred twenty-one".