22121021101101 has 32 divisors (see below), whose sum is σ = 33461343229440. Its totient is φ = 12886413384384.

The previous prime is 22121021101097. The next prime is 22121021101129. The reversal of 22121021101101 is 10110112012122.

It is a happy number.

It is not a de Polignac number, because 22121021101101 - 2² = 22121021101097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121021101181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10683331 + ... + 12584736.

It is an arithmetic number, because the mean of its divisors is an integer number (1045666975920).

Almost surely, 2^{22121021101101} is an apocalyptic number.

It is an amenable number.

22121021101101 is a deficient number, since it is larger than the sum of its proper divisors (11340322128339).

22121021101101 is a wasteful number, since it uses less digits than its factorization.

22121021101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23269385.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22121021101101 its reverse (10110112012122), we get a palindrome (32231133113223).

The spelling of 22121021101101 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, one hundred one thousand, one hundred one".