12213133057 has 2 divisors, whose sum is σ = 12213133058. Its totient is φ = 12213133056.

The previous prime is 12213132959. The next prime is 12213133237. The reversal of 12213133057 is 75033131221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6477191361 + 5735941696 = 80481^2 + 75736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12213133057 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213134057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106566528 + 6106566529.

It is an arithmetic number, because the mean of its divisors is an integer number (6106566529).

Almost surely, 2^12213133057 is an apocalyptic number.

It is an amenable number.

12213133057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213133057 is an equidigital number, since it uses as much as digits as its factorization.

12213133057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 12213133057 its reverse (75033131221), we get a palindrome (87246264278).

The spelling of 12213133057 in words is "twelve billion, two hundred thirteen million, one hundred thirty-three thousand, fifty-seven".