2213211616605 has 96 divisors (see below), whose sum is σ = 4346747758080. Its totient is φ = 1071399286080.

The previous prime is 2213211616547. The next prime is 2213211616631. The reversal of 2213211616605 is 5066161123122.

2213211616605 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 21 + 16 + 16 + 605 = 666.

It is not a de Polignac number, because 2213211616605 - 2⁸ = 2213211616349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2213211616605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8464926 + ... + 8722464.

It is an arithmetic number, because the mean of its divisors is an integer number (45278622480).

Almost surely, 2^{2213211616605} is an apocalyptic number.

It is an amenable number.

2213211616605 is a deficient number, since it is larger than the sum of its proper divisors (2133536141475).

2213211616605 is a wasteful number, since it uses less digits than its factorization.

2213211616605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258213 (or 258201 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 2213211616605 its reverse (5066161123122), we get a palindrome (7279372739727).

The spelling of 2213211616605 in words is "two trillion, two hundred thirteen billion, two hundred eleven million, six hundred sixteen thousand, six hundred five".