122312223121 has 4 divisors (see below), whose sum is σ = 133431516144. Its totient is φ = 111192930100.

The previous prime is 122312223097. The next prime is 122312223127. The reversal of 122312223121 is 121322213221.

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 122312223121 - 2⁷ = 122312222993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122312223092 and 122312223101.

It is not an unprimeable number, because it can be changed into a prime (122312223127) 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, 5559646495 + ... + 5559646516.

It is an arithmetic number, because the mean of its divisors is an integer number (33357879036).

Almost surely, 2^122312223121 is an apocalyptic number.

122312223121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122312223121 is a deficient number, since it is larger than the sum of its proper divisors (11119293023).

122312223121 is a wasteful number, since it uses less digits than its factorization.

122312223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119293022.

The product of its digits is 576, while the sum is 22.

Adding to 122312223121 its reverse (121322213221), we get a palindrome (243634436342).

The spelling of 122312223121 in words is "one hundred twenty-two billion, three hundred twelve million, two hundred twenty-three thousand, one hundred twenty-one".