97212283381 has 2 divisors, whose sum is σ = 97212283382. Its totient is φ = 97212283380.

The previous prime is 97212283361. The next prime is 97212283393. The reversal of 97212283381 is 18338221279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97011069156 + 201214225 = 311466^2 + 14185^2 .

It is a cyclic number.

It is not a de Polignac number, because 97212283381 - 2¹³ = 97212275189 is a prime.

It is a super-2 number, since 2×97212283381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97212283351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48606141690 + 48606141691.

It is an arithmetic number, because the mean of its divisors is an integer number (48606141691).

Almost surely, 2^97212283381 is an apocalyptic number.

It is an amenable number.

97212283381 is a deficient number, since it is larger than the sum of its proper divisors (1).

97212283381 is an equidigital number, since it uses as much as digits as its factorization.

97212283381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The spelling of 97212283381 in words is "ninety-seven billion, two hundred twelve million, two hundred eighty-three thousand, three hundred eighty-one".