122206730491 has 2 divisors, whose sum is σ = 122206730492. Its totient is φ = 122206730490.

The previous prime is 122206730489. The next prime is 122206730531. The reversal of 122206730491 is 194037602221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122206730491 - 2¹ = 122206730489 is a prime.

Together with 122206730489, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 122206730491.

It is not a weakly prime, because it can be changed into another prime (122206730431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61103365245 + 61103365246.

It is an arithmetic number, because the mean of its divisors is an integer number (61103365246).

Almost surely, 2^122206730491 is an apocalyptic number.

122206730491 is a deficient number, since it is larger than the sum of its proper divisors (1).

122206730491 is an equidigital number, since it uses as much as digits as its factorization.

122206730491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 122206730491 in words is "one hundred twenty-two billion, two hundred six million, seven hundred thirty thousand, four hundred ninety-one".