2122202112121 has 16 divisors (see below), whose sum is σ = 2619058107904. Its totient is φ = 1674529723584.

The previous prime is 2122202112109. The next prime is 2122202112131. The reversal of 2122202112121 is 1212112022212.

It is a cyclic number.

It is not a de Polignac number, because 2122202112121 - 2³⁷ = 1984763158649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122202112131) 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, 31738950 + ... + 31805743.

It is an arithmetic number, because the mean of its divisors is an integer number (163691131744).

Almost surely, 2^{2122202112121} is an apocalyptic number.

It is an amenable number.

2122202112121 is a deficient number, since it is larger than the sum of its proper divisors (496855995783).

2122202112121 is a wasteful number, since it uses less digits than its factorization.

2122202112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63545080.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122202112121 its reverse (1212112022212), we get a palindrome (3334314134333).

The spelling of 2122202112121 in words is "two trillion, one hundred twenty-two billion, two hundred two million, one hundred twelve thousand, one hundred twenty-one".