2221200817 has 8 divisors (see below), whose sum is σ = 2459295072. Its totient is φ = 1989134400.

The previous prime is 2221200743. The next prime is 2221200829. The reversal of 2221200817 is 7180021222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221200817 - 2¹⁵ = 2221168049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221200791 and 2221200800.

It is not an unprimeable number, because it can be changed into a prime (2221200017) 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, 1506184 + ... + 1507657.

It is an arithmetic number, because the mean of its divisors is an integer number (307411884).

Almost surely, 2^2221200817 is an apocalyptic number.

It is an amenable number.

2221200817 is a deficient number, since it is larger than the sum of its proper divisors (238094255).

2221200817 is a wasteful number, since it uses less digits than its factorization.

2221200817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013919.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 2221200817 is about 47129.6171955597. The cubic root of 2221200817 is about 1304.7559164372.

The spelling of 2221200817 in words is "two billion, two hundred twenty-one million, two hundred thousand, eight hundred seventeen".