122120421101321 has 4 divisors (see below), whose sum is σ = 124718727933312. Its totient is φ = 119522114269332.

The previous prime is 122120421101303. The next prime is 122120421101333. The reversal of 122120421101321 is 123101124021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122120421101321 - 2⁶ = 122120421101257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120421301321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299153415925 + ... + 1299153416018.

It is an arithmetic number, because the mean of its divisors is an integer number (31179681983328).

Almost surely, 2^{122120421101321} is an apocalyptic number.

It is an amenable number.

122120421101321 is a deficient number, since it is larger than the sum of its proper divisors (2598306831991).

122120421101321 is an equidigital number, since it uses as much as digits as its factorization.

122120421101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598306831990.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 122120421101321 its reverse (123101124021221), we get a palindrome (245221545122542).

The spelling of 122120421101321 in words is "one hundred twenty-two trillion, one hundred twenty billion, four hundred twenty-one million, one hundred one thousand, three hundred twenty-one".