122220303121 has 4 divisors (see below), whose sum is σ = 139680346432. Its totient is φ = 104760259812.

The previous prime is 122220303109. The next prime is 122220303151. The reversal of 122220303121 is 121303022221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121303022221 = 22511 ⋅5388611.

It is a cyclic number.

It is not a de Polignac number, because 122220303121 - 2¹⁹ = 122219778833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220303151) 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 in 3 ways as a sum of consecutive naturals, for example, 8730021645 + ... + 8730021658.

It is an arithmetic number, because the mean of its divisors is an integer number (34920086608).

Almost surely, 2^122220303121 is an apocalyptic number.

It is an amenable number.

122220303121 is a deficient number, since it is larger than the sum of its proper divisors (17460043311).

122220303121 is an equidigital number, since it uses as much as digits as its factorization.

122220303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17460043310.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122220303121 its reverse (121303022221), we get a palindrome (243523325342).

The spelling of 122220303121 in words is "one hundred twenty-two billion, two hundred twenty million, three hundred three thousand, one hundred twenty-one".