10102221110221 has 2 divisors, whose sum is σ = 10102221110222. Its totient is φ = 10102221110220.

The previous prime is 10102221110209. The next prime is 10102221110269. The reversal of 10102221110221 is 12201112220101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9579730672996 + 522490437225 = 3095114^2 + 722835^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102221110221 - 2³⁹ = 9552465296333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10102221110195 and 10102221110204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102221110921) 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 as a sum of consecutive naturals, namely, 5051110555110 + 5051110555111.

It is an arithmetic number, because the mean of its divisors is an integer number (5051110555111).

Almost surely, 2^{10102221110221} is an apocalyptic number.

It is an amenable number.

10102221110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102221110221 is an equidigital number, since it uses as much as digits as its factorization.

10102221110221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10102221110221 its reverse (12201112220101), we get a palindrome (22303333330322).

The spelling of 10102221110221 in words is "ten trillion, one hundred two billion, two hundred twenty-one million, one hundred ten thousand, two hundred twenty-one".