22122101202121 has 16 divisors (see below), whose sum is σ = 23626545913728. Its totient is φ = 20640789792000.

The previous prime is 22122101202049. The next prime is 22122101202139. The reversal of 22122101202121 is 12120210122122.

It is a cyclic number.

It is not a de Polignac number, because 22122101202121 - 2²¹ = 22122099104969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122101202151) 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, 7515450 + ... + 10036243.

It is an arithmetic number, because the mean of its divisors is an integer number (1476659119608).

Almost surely, 2^{22122101202121} is an apocalyptic number.

It is an amenable number.

22122101202121 is a deficient number, since it is larger than the sum of its proper divisors (1504444711607).

22122101202121 is a wasteful number, since it uses less digits than its factorization.

22122101202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17552352.

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

Adding to 22122101202121 its reverse (12120210122122), we get a palindrome (34242311324243).

The spelling of 22122101202121 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred one million, two hundred two thousand, one hundred twenty-one".