10211221010211 has 16 divisors (see below), whose sum is σ = 14666258176416. Its totient is φ = 6282117409536.

The previous prime is 10211221010209. The next prime is 10211221010261. The reversal of 10211221010211 is 11201012211201.

It is a happy number.

It is not a de Polignac number, because 10211221010211 - 2¹ = 10211221010209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211221010261) 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 in 15 ways as a sum of consecutive naturals, for example, 35498760 + ... + 35785253.

It is an arithmetic number, because the mean of its divisors is an integer number (916641136026).

Almost surely, 2^{10211221010211} is an apocalyptic number.

10211221010211 is a deficient number, since it is larger than the sum of its proper divisors (4455037166205).

10211221010211 is a wasteful number, since it uses less digits than its factorization.

10211221010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71287702.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10211221010211 its reverse (11201012211201), we get a palindrome (21412233221412).

The spelling of 10211221010211 in words is "ten trillion, two hundred eleven billion, two hundred twenty-one million, ten thousand, two hundred eleven".