212000097015797 has 2 divisors, whose sum is σ = 212000097015798. Its totient is φ = 212000097015796.

The previous prime is 212000097015787. The next prime is 212000097015809. The reversal of 212000097015797 is 797510790000212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209457048062161 + 2543048953636 = 14472631^2 + 1594694^2 .

It is a cyclic number.

It is not a de Polignac number, because 212000097015797 - 2¹² = 212000097011701 is a prime.

It is a super-2 number, since 2×212000097015797² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212000097015757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000048507898 + 106000048507899.

It is an arithmetic number, because the mean of its divisors is an integer number (106000048507899).

Almost surely, 2^{212000097015797} is an apocalyptic number.

It is an amenable number.

212000097015797 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000097015797 is an equidigital number, since it uses as much as digits as its factorization.

212000097015797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 50.

The spelling of 212000097015797 in words is "two hundred twelve trillion, ninety-seven million, fifteen thousand, seven hundred ninety-seven".