10101221010211 has 2 divisors, whose sum is σ = 10101221010212. Its totient is φ = 10101221010210.

The previous prime is 10101221010203. The next prime is 10101221010227. The reversal of 10101221010211 is 11201012210101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10101221010211 - 2³ = 10101221010203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10101221010191 and 10101221010200.

It is not a weakly prime, because it can be changed into another prime (10101221070211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050610505105 + 5050610505106.

It is an arithmetic number, because the mean of its divisors is an integer number (5050610505106).

Almost surely, 2^{10101221010211} is an apocalyptic number.

10101221010211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101221010211 is an equidigital number, since it uses as much as digits as its factorization.

10101221010211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10101221010211 its reverse (11201012210101), we get a palindrome (21302233220312).

The spelling of 10101221010211 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, ten thousand, two hundred eleven".