12210001057 has 2 divisors, whose sum is σ = 12210001058. Its totient is φ = 12210001056.

The previous prime is 12210001049. The next prime is 12210001117. The reversal of 12210001057 is 75010001221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11364412816 + 845588241 = 106604^2 + 29079^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210001057 - 2³ = 12210001049 is a prime.

It is a super-2 number, since 2×12210001057² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12210007057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105000528 + 6105000529.

It is an arithmetic number, because the mean of its divisors is an integer number (6105000529).

Almost surely, 2^12210001057 is an apocalyptic number.

It is an amenable number.

12210001057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210001057 is an equidigital number, since it uses as much as digits as its factorization.

12210001057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 12210001057 its reverse (75010001221), we get a palindrome (87220002278).

The spelling of 12210001057 in words is "twelve billion, two hundred ten million, one thousand, fifty-seven".