2211122214205 has 8 divisors (see below), whose sum is σ = 2662925527512. Its totient is φ = 1762511857728.

The previous prime is 2211122214073. The next prime is 2211122214229. The reversal of 2211122214205 is 5024122211122.

It can be written as a sum of positive squares in 4 ways, for example, as 101871403929 + 2109250810276 = 319173^2 + 1452326^2 .

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 2211122214205 - 2²⁹ = 2210585343293 is a prime.

It is a super-2 number, since 2×2211122214205² (a number of 25 digits) contains 22 as substring.

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 2211122214205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798237682 + ... + 798240451.

It is an arithmetic number, because the mean of its divisors is an integer number (332865690939).

Almost surely, 2^{2211122214205} is an apocalyptic number.

It is an amenable number.

2211122214205 is a deficient number, since it is larger than the sum of its proper divisors (451803313307).

2211122214205 is a wasteful number, since it uses less digits than its factorization.

2211122214205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596478415.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 2211122214205 its reverse (5024122211122), we get a palindrome (7235244425327).

The spelling of 2211122214205 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, two hundred fourteen thousand, two hundred five".