100133000221 has 2 divisors, whose sum is σ = 100133000222. Its totient is φ = 100133000220.

The previous prime is 100133000179. The next prime is 100133000243. The reversal of 100133000221 is 122000331001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93241676025 + 6891324196 = 305355^2 + 83014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100133000221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100133000251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50066500110 + 50066500111.

It is an arithmetic number, because the mean of its divisors is an integer number (50066500111).

Almost surely, 2^100133000221 is an apocalyptic number.

It is an amenable number.

100133000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100133000221 is an equidigital number, since it uses as much as digits as its factorization.

100133000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100133000221 its reverse (122000331001), we get a palindrome (222133331222).

The spelling of 100133000221 in words is "one hundred billion, one hundred thirty-three million, two hundred twenty-one", and thus it is an aban number.