2211101102221 has 8 divisors (see below), whose sum is σ = 2435992574688. Its totient is φ = 1990190010000.

The previous prime is 2211101102143. The next prime is 2211101102251. The reversal of 2211101102221 is 1222011011122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211101102221 - 2⁹ = 2211101101709 is a prime.

It is a super-2 number, since 2×2211101102221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211101102195 and 2211101102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211101102251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995093895 + ... + 995096116.

It is an arithmetic number, because the mean of its divisors is an integer number (304499071836).

Almost surely, 2^{2211101102221} is an apocalyptic number.

It is an amenable number.

2211101102221 is a deficient number, since it is larger than the sum of its proper divisors (224891472467).

2211101102221 is a wasteful number, since it uses less digits than its factorization.

2211101102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990190123.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211101102221 its reverse (1222011011122), we get a palindrome (3433112113343).

The spelling of 2211101102221 in words is "two trillion, two hundred eleven billion, one hundred one million, one hundred two thousand, two hundred twenty-one".