122222101212121 has 8 divisors (see below), whose sum is σ = 134248532224320. Its totient is φ = 110755039084272.

The previous prime is 122222101212053. The next prime is 122222101212161. The reversal of 122222101212121 is 121212101222221.

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 122222101212121 - 2³¹ = 122219953728473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222101212092 and 122222101212101.

It is not an unprimeable number, because it can be changed into a prime (122222101212161) 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, 139842220630 + ... + 139842221503.

It is an arithmetic number, because the mean of its divisors is an integer number (16781066528040).

Almost surely, 2^{122222101212121} is an apocalyptic number.

It is an amenable number.

122222101212121 is a deficient number, since it is larger than the sum of its proper divisors (12026431012199).

122222101212121 is a wasteful number, since it uses less digits than its factorization.

122222101212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279684442175.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 122222101212121 its reverse (121212101222221), we get a palindrome (243434202434342).

The spelling of 122222101212121 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred one million, two hundred twelve thousand, one hundred twenty-one".