10221211221011 has 32 divisors (see below), whose sum is σ = 12508432542720. Its totient is φ = 8152424856576.

The previous prime is 10221211221007. The next prime is 10221211221017. The reversal of 10221211221011 is 11012211212201.

It is not a de Polignac number, because 10221211221011 - 2² = 10221211221007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221211221017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187507586 + ... + 187562088.

It is an arithmetic number, because the mean of its divisors is an integer number (390888516960).

Almost surely, 2^{10221211221011} is an apocalyptic number.

10221211221011 is a deficient number, since it is larger than the sum of its proper divisors (2287221321709).

10221211221011 is a wasteful number, since it uses less digits than its factorization.

10221211221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72323.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10221211221011 its reverse (11012211212201), we get a palindrome (21233422433212).

The spelling of 10221211221011 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty-one thousand, eleven".