2221770017 has 8 divisors (see below), whose sum is σ = 2276346240. Its totient is φ = 2167662640.

The previous prime is 2221770007. The next prime is 2221770029. The reversal of 2221770017 is 7100771222.

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 2221770017 - 2⁸ = 2221769761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221770007) 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, 107609 + ... + 126582.

It is an arithmetic number, because the mean of its divisors is an integer number (284543280).

Almost surely, 2^2221770017 is an apocalyptic number.

It is an amenable number.

2221770017 is a deficient number, since it is larger than the sum of its proper divisors (54576223).

2221770017 is a wasteful number, since it uses less digits than its factorization.

2221770017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234423.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 2221770017 is about 47135.6554743858. The cubic root of 2221770017 is about 1304.8673582052.

The spelling of 2221770017 in words is "two billion, two hundred twenty-one million, seven hundred seventy thousand, seventeen".