12211210057 has 2 divisors, whose sum is σ = 12211210058. Its totient is φ = 12211210056.

The previous prime is 12211210043. The next prime is 12211210103. The reversal of 12211210057 is 75001211221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12150432441 + 60777616 = 110229^2 + 7796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211210057 is a prime.

It is a super-2 number, since 2×12211210057² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211210657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105605028 + 6105605029.

It is an arithmetic number, because the mean of its divisors is an integer number (6105605029).

Almost surely, 2^12211210057 is an apocalyptic number.

It is an amenable number.

12211210057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211210057 is an equidigital number, since it uses as much as digits as its factorization.

12211210057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 12211210057 its reverse (75001211221), we get a palindrome (87212421278).

The spelling of 12211210057 in words is "twelve billion, two hundred eleven million, two hundred ten thousand, fifty-seven".