2221076617 has 8 divisors (see below), whose sum is σ = 2238642824. Its totient is φ = 2203573248.

The previous prime is 2221076593. The next prime is 2221076629. The reversal of 2221076617 is 7166701222.

It can be written as a sum of positive squares in 4 ways, for example, as 6056521 + 2215020096 = 2461^2 + 47064^2 .

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 2221076617 - 2¹⁹ = 2220552329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221076647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56563 + ... + 87415.

It is an arithmetic number, because the mean of its divisors is an integer number (279830353).

Almost surely, 2^2221076617 is an apocalyptic number.

It is an amenable number.

2221076617 is a deficient number, since it is larger than the sum of its proper divisors (17566207).

2221076617 is a wasteful number, since it uses less digits than its factorization.

2221076617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31419.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2221076617 is about 47128.2995343562. The cubic root of 2221076617 is about 1304.7315972035.

Adding to 2221076617 its reverse (7166701222), we get a palindrome (9387777839).

The spelling of 2221076617 in words is "two billion, two hundred twenty-one million, seventy-six thousand, six hundred seventeen".