2247021173 has 2 divisors, whose sum is σ = 2247021174. Its totient is φ = 2247021172.

The previous prime is 2247021169. The next prime is 2247021197. The reversal of 2247021173 is 3711207422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1752092164 + 494929009 = 41858^2 + 22247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2247021173 - 2² = 2247021169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2247020173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1123510586 + 1123510587.

It is an arithmetic number, because the mean of its divisors is an integer number (1123510587).

Almost surely, 2^2247021173 is an apocalyptic number.

It is an amenable number.

2247021173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2247021173 is an equidigital number, since it uses as much as digits as its factorization.

2247021173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2247021173 is about 47402.7549093932. The cubic root of 2247021173 is about 1309.7921650353.

Adding to 2247021173 its reverse (3711207422), we get a palindrome (5958228595).

The spelling of 2247021173 in words is "two billion, two hundred forty-seven million, twenty-one thousand, one hundred seventy-three".