2273475221 has 2 divisors, whose sum is σ = 2273475222. Its totient is φ = 2273475220.

The previous prime is 2273475173. The next prime is 2273475223. The reversal of 2273475221 is 1225743722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1561119121 + 712356100 = 39511^2 + 26690^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273475221 - 2¹⁰ = 2273474197 is a prime.

Together with 2273475223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2273475223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136737610 + 1136737611.

It is an arithmetic number, because the mean of its divisors is an integer number (1136737611).

Almost surely, 2^2273475221 is an apocalyptic number.

It is an amenable number.

2273475221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273475221 is an equidigital number, since it uses as much as digits as its factorization.

2273475221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 35.

The square root of 2273475221 is about 47680.9733646451. The cubic root of 2273475221 is about 1314.9121601800.

The spelling of 2273475221 in words is "two billion, two hundred seventy-three million, four hundred seventy-five thousand, two hundred twenty-one".