1228822057 has 2 divisors, whose sum is σ = 1228822058. Its totient is φ = 1228822056.

The previous prime is 1228822043. The next prime is 1228822069. The reversal of 1228822057 is 7502288221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220733721 + 8088336 = 34939^2 + 2844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228822057 is a prime.

It is a super-2 number, since 2×1228822057² = 3020007295539422498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1228822157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614411028 + 614411029.

It is an arithmetic number, because the mean of its divisors is an integer number (614411029).

Almost surely, 2^1228822057 is an apocalyptic number.

It is an amenable number.

1228822057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228822057 is an equidigital number, since it uses as much as digits as its factorization.

1228822057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 1228822057 is about 35054.5582913264. The cubic root of 1228822057 is about 1071.0991288095.

The spelling of 1228822057 in words is "one billion, two hundred twenty-eight million, eight hundred twenty-two thousand, fifty-seven".