97912010219 has 2 divisors, whose sum is σ = 97912010220. Its totient is φ = 97912010218.

The previous prime is 97912010201. The next prime is 97912010257. The reversal of 97912010219 is 91201021979.

It is a weak prime.

It is an emirp because it is prime and its reverse (91201021979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97912010219 - 2²⁴ = 97895233003 is a prime.

It is a super-2 number, since 2×97912010219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97912010269) 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, 48956005109 + 48956005110.

It is an arithmetic number, because the mean of its divisors is an integer number (48956005110).

Almost surely, 2^97912010219 is an apocalyptic number.

97912010219 is a deficient number, since it is larger than the sum of its proper divisors (1).

97912010219 is an equidigital number, since it uses as much as digits as its factorization.

97912010219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 41.

The spelling of 97912010219 in words is "ninety-seven billion, nine hundred twelve million, ten thousand, two hundred nineteen".