122024670721 has 4 divisors (see below), whose sum is σ = 125000882244. Its totient is φ = 119048459200.

The previous prime is 122024670697. The next prime is 122024670737. The reversal of 122024670721 is 127076420221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 127076420221 = 283 ⋅449033287.

It can be written as a sum of positive squares in 2 ways, for example, as 26085803121 + 95938867600 = 161511^2 + 309740^2 .

It is a cyclic number.

It is not a de Polignac number, because 122024670721 - 2¹⁵ = 122024637953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122024670791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488105700 + ... + 1488105781.

It is an arithmetic number, because the mean of its divisors is an integer number (31250220561).

Almost surely, 2^122024670721 is an apocalyptic number.

It is an amenable number.

122024670721 is a deficient number, since it is larger than the sum of its proper divisors (2976211523).

122024670721 is an equidigital number, since it uses as much as digits as its factorization.

122024670721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976211522.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 122024670721 in words is "one hundred twenty-two billion, twenty-four million, six hundred seventy thousand, seven hundred twenty-one".