122222220121121 has 8 divisors (see below), whose sum is σ = 122251442654880. Its totient is φ = 122193001096992.

The previous prime is 122222220121087. The next prime is 122222220121181. The reversal of 122222220121121 is 121121022222221.

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 122222220121121 - 2²⁶ = 122222153012257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122222220121181) 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, 69452726 + ... + 71190768.

It is an arithmetic number, because the mean of its divisors is an integer number (15281430331860).

Almost surely, 2^{122222220121121} is an apocalyptic number.

It is an amenable number.

122222220121121 is a deficient number, since it is larger than the sum of its proper divisors (29222533759).

122222220121121 is an equidigital number, since it uses as much as digits as its factorization.

122222220121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754815.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122222220121121 its reverse (121121022222221), we get a palindrome (243343242343342).

The spelling of 122222220121121 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".