122420001320447 has 2 divisors, whose sum is σ = 122420001320448. Its totient is φ = 122420001320446.

The previous prime is 122420001320401. The next prime is 122420001320497. The reversal of 122420001320447 is 744023100024221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122420001320447 - 2²⁸ = 122419732884991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122420001320497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61210000660223 + 61210000660224.

It is an arithmetic number, because the mean of its divisors is an integer number (61210000660224).

Almost surely, 2^{122420001320447} is an apocalyptic number.

122420001320447 is a deficient number, since it is larger than the sum of its proper divisors (1).

122420001320447 is an equidigital number, since it uses as much as digits as its factorization.

122420001320447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 122420001320447 its reverse (744023100024221), we get a palindrome (866443101344668).

The spelling of 122420001320447 in words is "one hundred twenty-two trillion, four hundred twenty billion, one million, three hundred twenty thousand, four hundred forty-seven".