2212263457 has 4 divisors (see below), whose sum is σ = 2212850500. Its totient is φ = 2211676416.

The previous prime is 2212263451. The next prime is 2212263479. The reversal of 2212263457 is 7543622122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7543622122 = 2 ⋅3771811061.

It can be written as a sum of positive squares in 2 ways, for example, as 1101974416 + 1110289041 = 33196^2 + 33321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212263457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212263451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287832 + ... + 295417.

It is an arithmetic number, because the mean of its divisors is an integer number (553212625).

Almost surely, 2^2212263457 is an apocalyptic number.

It is an amenable number.

2212263457 is a deficient number, since it is larger than the sum of its proper divisors (587043).

2212263457 is an equidigital number, since it uses as much as digits as its factorization.

2212263457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587042.

The product of its digits is 40320, while the sum is 34.

The square root of 2212263457 is about 47034.7048146366. The cubic root of 2212263457 is about 1303.0035987459.

Adding to 2212263457 its reverse (7543622122), we get a palindrome (9755885579).

The spelling of 2212263457 in words is "two billion, two hundred twelve million, two hundred sixty-three thousand, four hundred fifty-seven".