2122202222121 has 16 divisors (see below), whose sum is σ = 2841277057920. Its totient is φ = 1408971294720.

The previous prime is 2122202222111. The next prime is 2122202222123. The reversal of 2122202222121 is 1212222022212.

It is not a de Polignac number, because 2122202222121 - 2⁶ = 2122202222057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122202222123) 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, 381756 + ... + 2095266.

It is an arithmetic number, because the mean of its divisors is an integer number (177579816120).

Almost surely, 2^{2122202222121} is an apocalyptic number.

It is an amenable number.

2122202222121 is a deficient number, since it is larger than the sum of its proper divisors (719074835799).

2122202222121 is a wasteful number, since it uses less digits than its factorization.

2122202222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715216.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2122202222121 its reverse (1212222022212), we get a palindrome (3334424244333).

The spelling of 2122202222121 in words is "two trillion, one hundred twenty-two billion, two hundred two million, two hundred twenty-two thousand, one hundred twenty-one".