122212101220121 has 8 divisors (see below), whose sum is σ = 133331027422464. Its totient is φ = 111094630881520.

The previous prime is 122212101220073. The next prime is 122212101220123. The reversal of 122212101220121 is 121022101212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122212101220121 - 2¹⁰ = 122212101219097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122212101220093 and 122212101220102.

It is not an unprimeable number, because it can be changed into a prime (122212101220123) 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, 363790406 + ... + 364126191.

It is an arithmetic number, because the mean of its divisors is an integer number (16666378427808).

Almost surely, 2^{122212101220121} is an apocalyptic number.

122212101220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122212101220121 is a deficient number, since it is larger than the sum of its proper divisors (11118926202343).

122212101220121 is a wasteful number, since it uses less digits than its factorization.

122212101220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727931871.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122212101220121 its reverse (121022101212221), we get a palindrome (243234202432342).

The spelling of 122212101220121 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred one million, two hundred twenty thousand, one hundred twenty-one".