20101222102211 has 16 divisors (see below), whose sum is σ = 21128382912000. Its totient is φ = 19086857558208.

The previous prime is 20101222102187. The next prime is 20101222102223. The reversal of 20101222102211 is 11220122210102.

It is not a de Polignac number, because 20101222102211 - 2³⁰ = 20100148360387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20101222102211.

It is not an unprimeable number, because it can be changed into a prime (20101222102711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29513690 + ... + 30187088.

It is an arithmetic number, because the mean of its divisors is an integer number (1320523932000).

Almost surely, 2^{20101222102211} is an apocalyptic number.

20101222102211 is a deficient number, since it is larger than the sum of its proper divisors (1027160809789).

20101222102211 is a wasteful number, since it uses less digits than its factorization.

20101222102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682898.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20101222102211 its reverse (11220122210102), we get a palindrome (31321344312313).

The spelling of 20101222102211 in words is "twenty trillion, one hundred one billion, two hundred twenty-two million, one hundred two thousand, two hundred eleven".