2221917273 has 24 divisors (see below), whose sum is σ = 3322467720. Its totient is φ = 1429182720.

The previous prime is 2221917263. The next prime is 2221917283. The reversal of 2221917273 is 3727191222.

It is an interprime number because it is at equal distance from previous prime (2221917263) and next prime (2221917283).

It can be written as a sum of positive squares in 4 ways, for example, as 254817369 + 1967099904 = 15963^2 + 44352^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2221917273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221917233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 577765 + ... + 581597.

It is an arithmetic number, because the mean of its divisors is an integer number (138436155).

Almost surely, 2^2221917273 is an apocalyptic number.

It is an amenable number.

2221917273 is a deficient number, since it is larger than the sum of its proper divisors (1100550447).

2221917273 is a wasteful number, since it uses less digits than its factorization.

2221917273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089 (or 6086 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 2221917273 is about 47137.2174931868. The cubic root of 2221917273 is about 1304.8961858669.

The spelling of 2221917273 in words is "two billion, two hundred twenty-one million, nine hundred seventeen thousand, two hundred seventy-three".