2211222221093 has 4 divisors (see below), whose sum is σ = 2211466807308. Its totient is φ = 2210977634880.

The previous prime is 2211222220997. The next prime is 2211222221189. The reversal of 2211222221093 is 3901222221122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2211222220997) and next prime (2211222221189).

It can be written as a sum of positive squares in 2 ways, for example, as 1780962313729 + 430259907364 = 1334527^2 + 655942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211222221093 is a prime.

It is a super-2 number, since 2×2211222221093² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222221693) 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 3 ways as a sum of consecutive naturals, for example, 122279546 + ... + 122297627.

It is an arithmetic number, because the mean of its divisors is an integer number (552866701827).

Almost surely, 2^{2211222221093} is an apocalyptic number.

It is an amenable number.

2211222221093 is a deficient number, since it is larger than the sum of its proper divisors (244586215).

2211222221093 is an equidigital number, since it uses as much as digits as its factorization.

2211222221093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244586214.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 2211222221093 its sum of digits (29), we get a palindrome (2211222221122).

The spelling of 2211222221093 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, ninety-three".