22101101001221 has 8 divisors (see below), whose sum is σ = 24254665009344. Its totient is φ = 19971599161120.

The previous prime is 22101101001197. The next prime is 22101101001283. The reversal of 22101101001221 is 12210010110122.

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

It is a cyclic number.

It is not a de Polignac number, because 22101101001221 - 2³⁰ = 22100027259397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22101101001196 and 22101101001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101901001221) 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, 6015540080 + ... + 6015543753.

It is an arithmetic number, because the mean of its divisors is an integer number (3031833126168).

Almost surely, 2^{22101101001221} is an apocalyptic number.

It is an amenable number.

22101101001221 is a deficient number, since it is larger than the sum of its proper divisors (2153564008123).

22101101001221 is a wasteful number, since it uses less digits than its factorization.

22101101001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12031084011.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22101101001221 its reverse (12210010110122), we get a palindrome (34311111111343).

The spelling of 22101101001221 in words is "twenty-two trillion, one hundred one billion, one hundred one million, one thousand, two hundred twenty-one".