122222112002121 has 16 divisors (see below), whose sum is σ = 165174442617600. Its totient is φ = 80377454771328.

The previous prime is 122222112002083. The next prime is 122222112002141. The reversal of 122222112002121 is 121200211222221.

It is not a de Polignac number, because 122222112002121 - 2²¹ = 122222109904969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122222112002141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232246236 + ... + 232771901.

It is an arithmetic number, because the mean of its divisors is an integer number (10323402663600).

Almost surely, 2^{122222112002121} is an apocalyptic number.

It is an amenable number.

122222112002121 is a deficient number, since it is larger than the sum of its proper divisors (42952330615479).

122222112002121 is a wasteful number, since it uses less digits than its factorization.

122222112002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465019328.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122222112002121 its reverse (121200211222221), we get a palindrome (243422323224342).

The spelling of 122222112002121 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred twelve million, two thousand, one hundred twenty-one".