100210101000221 has 2 divisors, whose sum is σ = 100210101000222. Its totient is φ = 100210101000220.

The previous prime is 100210101000211. The next prime is 100210101000227. The reversal of 100210101000221 is 122000101012001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70741640748025 + 29468460252196 = 8410805^2 + 5428486^2 .

It is a cyclic number.

It is not a de Polignac number, because 100210101000221 - 2⁴² = 95812054489117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100210101000227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105050500110 + 50105050500111.

It is an arithmetic number, because the mean of its divisors is an integer number (50105050500111).

Almost surely, 2^{100210101000221} is an apocalyptic number.

It is an amenable number.

100210101000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100210101000221 is an equidigital number, since it uses as much as digits as its factorization.

100210101000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100210101000221 its reverse (122000101012001), we get a palindrome (222210202012222).

The spelling of 100210101000221 in words is "one hundred trillion, two hundred ten billion, one hundred one million, two hundred twenty-one", and thus it is an aban number.