12200020022257 has 2 divisors, whose sum is σ = 12200020022258. Its totient is φ = 12200020022256.

The previous prime is 12200020022161. The next prime is 12200020022273. The reversal of 12200020022257 is 75222002000221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11548062283536 + 651957738721 = 3398244^2 + 807439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12200020022257 is a prime.

It is not a weakly prime, because it can be changed into another prime (12200020025257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100010011128 + 6100010011129.

It is an arithmetic number, because the mean of its divisors is an integer number (6100010011129).

Almost surely, 2^{12200020022257} is an apocalyptic number.

It is an amenable number.

12200020022257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200020022257 is an equidigital number, since it uses as much as digits as its factorization.

12200020022257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 12200020022257 its reverse (75222002000221), we get a palindrome (87422022022478).

The spelling of 12200020022257 in words is "twelve trillion, two hundred billion, twenty million, twenty-two thousand, two hundred fifty-seven".