122421201121 has 8 divisors (see below), whose sum is σ = 122728374504. Its totient is φ = 122114106240.

The previous prime is 122421201113. The next prime is 122421201143. The reversal of 122421201121 is 121102124221.

It can be written as a sum of positive squares in 4 ways, for example, as 298909521 + 122122291600 = 17289^2 + 349460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122421201121 - 2³ = 122421201113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122421201191) 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 7 ways as a sum of consecutive naturals, for example, 4251645 + ... + 4280341.

It is an arithmetic number, because the mean of its divisors is an integer number (15341046813).

Almost surely, 2^122421201121 is an apocalyptic number.

It is an amenable number.

122421201121 is a deficient number, since it is larger than the sum of its proper divisors (307173383).

122421201121 is a wasteful number, since it uses less digits than its factorization.

122421201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39251.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122421201121 its reverse (121102124221), we get a palindrome (243523325342).

The spelling of 122421201121 in words is "one hundred twenty-two billion, four hundred twenty-one million, two hundred one thousand, one hundred twenty-one".