100200100022221 has 2 divisors, whose sum is σ = 100200100022222. Its totient is φ = 100200100022220.

The previous prime is 100200100022219. The next prime is 100200100022233. The reversal of 100200100022221 is 122220001002001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51079766234121 + 49120333788100 = 7147011^2 + 7008590^2 .

It is a cyclic number.

It is not a de Polignac number, because 100200100022221 - 2¹ = 100200100022219 is a prime.

Together with 100200100022219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100200100022921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100050011110 + 50100050011111.

It is an arithmetic number, because the mean of its divisors is an integer number (50100050011111).

Almost surely, 2^{100200100022221} is an apocalyptic number.

It is an amenable number.

100200100022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100200100022221 is an equidigital number, since it uses as much as digits as its factorization.

100200100022221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100200100022221 its reverse (122220001002001), we get a palindrome (222420101024222).

The spelling of 100200100022221 in words is "one hundred trillion, two hundred billion, one hundred million, twenty-two thousand, two hundred twenty-one".