2221350869 has 4 divisors (see below), whose sum is σ = 2225457420. Its totient is φ = 2217244320.

The previous prime is 2221350853. The next prime is 2221350871. The reversal of 2221350869 is 9680531222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 943288369 + 1278062500 = 30713^2 + 35750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221350869 - 2⁴ = 2221350853 is a prime.

It is a super-2 number, since 2×2221350869² = 9868799366414110322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221358869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052464 + ... + 2053545.

It is an arithmetic number, because the mean of its divisors is an integer number (556364355).

Almost surely, 2^2221350869 is an apocalyptic number.

It is an amenable number.

2221350869 is a deficient number, since it is larger than the sum of its proper divisors (4106551).

2221350869 is an equidigital number, since it uses as much as digits as its factorization.

2221350869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106550.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 2221350869 is about 47131.2090763647. The cubic root of 2221350869 is about 1304.7852964652.

The spelling of 2221350869 in words is "two billion, two hundred twenty-one million, three hundred fifty thousand, eight hundred sixty-nine".