22000121210121 has 8 divisors (see below), whose sum is σ = 29618286160320. Its totient is φ = 14524351866672.

The previous prime is 22000121210117. The next prime is 22000121210147. The reversal of 22000121210121 is 12101212100022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22000121210121 - 2² = 22000121210117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22000121210121.

It is not an unprimeable number, because it can be changed into a prime (22000121210521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35598901326 + ... + 35598901943.

It is an arithmetic number, because the mean of its divisors is an integer number (3702285770040).

Almost surely, 2^{22000121210121} is an apocalyptic number.

It is an amenable number.

22000121210121 is a deficient number, since it is larger than the sum of its proper divisors (7618164950199).

22000121210121 is a wasteful number, since it uses less digits than its factorization.

22000121210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71197803375.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22000121210121 its reverse (12101212100022), we get a palindrome (34101333310143).

It can be divided in two parts, 22000 and 121210121, that added together give a palindrome (121232121).

The spelling of 22000121210121 in words is "twenty-two trillion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-one".