2221466773 has 4 divisors (see below), whose sum is σ = 2223838540. Its totient is φ = 2219095008.

The previous prime is 2221466759. The next prime is 2221466827. The reversal of 2221466773 is 3776641222.

It is a happy number.

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 1117765489 + 1103701284 = 33433^2 + 33222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221466773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221466713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184478 + ... + 1186351.

It is an arithmetic number, because the mean of its divisors is an integer number (555959635).

Almost surely, 2^2221466773 is an apocalyptic number.

It is an amenable number.

2221466773 is a deficient number, since it is larger than the sum of its proper divisors (2371767).

2221466773 is an equidigital number, since it uses as much as digits as its factorization.

2221466773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371766.

The product of its digits is 169344, while the sum is 40.

The square root of 2221466773 is about 47132.4386489814. The cubic root of 2221466773 is about 1304.8079894440.

The spelling of 2221466773 in words is "two billion, two hundred twenty-one million, four hundred sixty-six thousand, seven hundred seventy-three".