22001021122211 has 24 divisors (see below), whose sum is σ = 22933506960000. Its totient is φ = 21084465680640.

The previous prime is 22001021122183. The next prime is 22001021122247. The reversal of 22001021122211 is 11222112010022.

It is not a de Polignac number, because 22001021122211 - 2³⁰ = 21999947380387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22001021122211.

It is not an unprimeable number, because it can be changed into a prime (22001021122291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717822815 + ... + 717853463.

It is an arithmetic number, because the mean of its divisors is an integer number (955562790000).

Almost surely, 2^{22001021122211} is an apocalyptic number.

22001021122211 is a deficient number, since it is larger than the sum of its proper divisors (932485837789).

22001021122211 is a wasteful number, since it uses less digits than its factorization.

22001021122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847 (or 32738 counting only the distinct ones).

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

Adding to 22001021122211 its reverse (11222112010022), we get a palindrome (33223133132233).

The spelling of 22001021122211 in words is "twenty-two trillion, one billion, twenty-one million, one hundred twenty-two thousand, two hundred eleven".