100220132120221 has 2 divisors, whose sum is σ = 100220132120222. Its totient is φ = 100220132120220.

The previous prime is 100220132120179. The next prime is 100220132120243. The reversal of 100220132120221 is 122021231022001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64657455852196 + 35562676268025 = 8040986^2 + 5963445^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220132120221 - 2²³ = 100220123731613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220132120821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110066060110 + 50110066060111.

It is an arithmetic number, because the mean of its divisors is an integer number (50110066060111).

Almost surely, 2^{100220132120221} is an apocalyptic number.

It is an amenable number.

100220132120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220132120221 is an equidigital number, since it uses as much as digits as its factorization.

100220132120221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100220132120221 its reverse (122021231022001), we get a palindrome (222241363142222).

The spelling of 100220132120221 in words is "one hundred trillion, two hundred twenty billion, one hundred thirty-two million, one hundred twenty thousand, two hundred twenty-one".