122021427641 has 2 divisors, whose sum is σ = 122021427642. Its totient is φ = 122021427640.

The previous prime is 122021427631. The next prime is 122021427667. The reversal of 122021427641 is 146724120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113027750416 + 8993677225 = 336196^2 + 94835^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021427641 - 2¹⁰ = 122021426617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122021427598 and 122021427607.

It is not a weakly prime, because it can be changed into another prime (122021427631) 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, 61010713820 + 61010713821.

It is an arithmetic number, because the mean of its divisors is an integer number (61010713821).

Almost surely, 2^122021427641 is an apocalyptic number.

It is an amenable number.

122021427641 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021427641 is an equidigital number, since it uses as much as digits as its factorization.

122021427641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 122021427641 its reverse (146724120221), we get a palindrome (268745547862).

The spelling of 122021427641 in words is "one hundred twenty-two billion, twenty-one million, four hundred twenty-seven thousand, six hundred forty-one".