2012100220997 has 2 divisors, whose sum is σ = 2012100220998. Its totient is φ = 2012100220996.

The previous prime is 2012100220987. The next prime is 2012100221017. The reversal of 2012100220997 is 7990220012102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1327585579681 + 684514641316 = 1152209^2 + 827354^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012100220997 - 2¹² = 2012100216901 is a prime.

It is a super-3 number, since 3×2012100220997³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012100220987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006050110498 + 1006050110499.

It is an arithmetic number, because the mean of its divisors is an integer number (1006050110499).

Almost surely, 2^{2012100220997} is an apocalyptic number.

It is an amenable number.

2012100220997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012100220997 is an equidigital number, since it uses as much as digits as its factorization.

2012100220997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 2012100220997 in words is "two trillion, twelve billion, one hundred million, two hundred twenty thousand, nine hundred ninety-seven".