122212102121 has 8 divisors (see below), whose sum is σ = 122311253064. Its totient is φ = 122112996480.

The previous prime is 122212102109. The next prime is 122212102147. The reversal of 122212102121 is 121201212221.

It can be written as a sum of positive squares in 4 ways, for example, as 74343475600 + 47868626521 = 272660^2 + 218789^2 .

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 122212102121 - 2¹⁰ = 122212101097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122212102121.

It is not an unprimeable number, because it can be changed into a prime (122212102421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7038911 + ... + 7056251.

It is an arithmetic number, because the mean of its divisors is an integer number (15288906633).

Almost surely, 2^122212102121 is an apocalyptic number.

It is an amenable number.

122212102121 is a deficient number, since it is larger than the sum of its proper divisors (99150943).

122212102121 is a wasteful number, since it uses less digits than its factorization.

122212102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22651.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122212102121 its reverse (121201212221), we get a palindrome (243413314342).

The spelling of 122212102121 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred two thousand, one hundred twenty-one".