122848147021 has 2 divisors, whose sum is σ = 122848147022. Its totient is φ = 122848147020.

The previous prime is 122848147001. The next prime is 122848147033. The reversal of 122848147021 is 120741848221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110839055625 + 12009091396 = 332925^2 + 109586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122848147021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122848147001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61424073510 + 61424073511.

It is an arithmetic number, because the mean of its divisors is an integer number (61424073511).

Almost surely, 2^122848147021 is an apocalyptic number.

It is an amenable number.

122848147021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122848147021 is an equidigital number, since it uses as much as digits as its factorization.

122848147021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 122848147021 in words is "one hundred twenty-two billion, eight hundred forty-eight million, one hundred forty-seven thousand, twenty-one".