2112251202317 has 2 divisors, whose sum is σ = 2112251202318. Its totient is φ = 2112251202316.

The previous prime is 2112251202307. The next prime is 2112251202343. The reversal of 2112251202317 is 7132021522112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1812539845636 + 299711356681 = 1346306^2 + 547459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112251202317 - 2⁶ = 2112251202253 is a prime.

It is a super-2 number, since 2×2112251202317² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112251202317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112251202307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056125601158 + 1056125601159.

It is an arithmetic number, because the mean of its divisors is an integer number (1056125601159).

Almost surely, 2^{2112251202317} is an apocalyptic number.

It is an amenable number.

2112251202317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112251202317 is an equidigital number, since it uses as much as digits as its factorization.

2112251202317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 2112251202317 its reverse (7132021522112), we get a palindrome (9244272724429).

The spelling of 2112251202317 in words is "two trillion, one hundred twelve billion, two hundred fifty-one million, two hundred two thousand, three hundred seventeen".