2110101222221 has 16 divisors (see below), whose sum is σ = 2169132081600. Its totient is φ = 2051544475008.

The previous prime is 2110101222179. The next prime is 2110101222239. The reversal of 2110101222221 is 1222221010112.

It is a cyclic number.

It is not a de Polignac number, because 2110101222221 - 2¹⁰ = 2110101221197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110101222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110101212221) 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, 8167985 + ... + 8422361.

It is an arithmetic number, because the mean of its divisors is an integer number (135570755100).

Almost surely, 2^{2110101222221} is an apocalyptic number.

It is an amenable number.

2110101222221 is a deficient number, since it is larger than the sum of its proper divisors (59030859379).

2110101222221 is a wasteful number, since it uses less digits than its factorization.

2110101222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255308.

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

Adding to 2110101222221 its reverse (1222221010112), we get a palindrome (3332322232333).

The spelling of 2110101222221 in words is "two trillion, one hundred ten billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty-one".