2222213617 has 6 divisors (see below), whose sum is σ = 2406302502. Its totient is φ = 2051273952.

The previous prime is 2222213597. The next prime is 2222213657. The reversal of 2222213617 is 7163122222.

It can be written as a sum of positive squares in 3 ways, for example, as 268927201 + 1953286416 = 16399^2 + 44196^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2222213617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222213657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6574428 + ... + 6574765.

It is an arithmetic number, because the mean of its divisors is an integer number (401050417).

Almost surely, 2^2222213617 is an apocalyptic number.

2222213617 is the 27217-th hex number.

It is an amenable number.

2222213617 is a deficient number, since it is larger than the sum of its proper divisors (184088885).

2222213617 is a wasteful number, since it uses less digits than its factorization.

2222213617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13149219 (or 13149206 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 2222213617 is about 47140.3608068500. The cubic root of 2222213617 is about 1304.9541959721.

Adding to 2222213617 its reverse (7163122222), we get a palindrome (9385335839).

The spelling of 2222213617 in words is "two billion, two hundred twenty-two million, two hundred thirteen thousand, six hundred seventeen".