122121122121 has 32 divisors (see below), whose sum is σ = 182770323840. Its totient is φ = 80582040000.

The previous prime is 122121122119. The next prime is 122121122159. The reversal of 122121122121 is 121221121221.

It is not a de Polignac number, because 122121122121 - 2¹ = 122121122119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122121122094 and 122121122103.

It is not an unprimeable number, because it can be changed into a prime (122121122111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12329271 + ... + 12339171.

It is an arithmetic number, because the mean of its divisors is an integer number (5711572620).

Almost surely, 2^122121122121 is an apocalyptic number.

It is an amenable number.

122121122121 is a deficient number, since it is larger than the sum of its proper divisors (60649201719).

122121122121 is a wasteful number, since it uses less digits than its factorization.

122121122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534 (or 14528 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

Adding to 122121122121 its reverse (121221121221), we get a palindrome (243342243342).

The spelling of 122121122121 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-one".