1212001300217 has 2 divisors, whose sum is σ = 1212001300218. Its totient is φ = 1212001300216.

The previous prime is 1212001300157. The next prime is 1212001300277. The reversal of 1212001300217 is 7120031002121.

It is a balanced prime because it is at equal distance from previous prime (1212001300157) and next prime (1212001300277).

It can be written as a sum of positive squares in only one way, i.e., 630715518976 + 581285781241 = 794176^2 + 762421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212001300217 - 2⁸ = 1212001299961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212001300277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606000650108 + 606000650109.

It is an arithmetic number, because the mean of its divisors is an integer number (606000650109).

Almost surely, 2^{1212001300217} is an apocalyptic number.

It is an amenable number.

1212001300217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212001300217 is an equidigital number, since it uses as much as digits as its factorization.

1212001300217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 1212001300217 its reverse (7120031002121), we get a palindrome (8332032302338).

The spelling of 1212001300217 in words is "one trillion, two hundred twelve billion, one million, three hundred thousand, two hundred seventeen".