221102102000121 has 8 divisors (see below), whose sum is σ = 295851922962144. Its totient is φ = 146876841185760.

The previous prime is 221102102000081. The next prime is 221102102000137. The reversal of 221102102000121 is 121000201201122.

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

It is not a de Polignac number, because 221102102000121 - 2¹³ = 221102101991929 is a prime.

It is a super-2 number, since 2×221102102000121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221102102000121.

It is not an unprimeable number, because it can be changed into a prime (221102102000191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131140035931 + ... + 131140037616.

It is an arithmetic number, because the mean of its divisors is an integer number (36981490370268).

Almost surely, 2^{221102102000121} is an apocalyptic number.

It is an amenable number.

221102102000121 is a deficient number, since it is larger than the sum of its proper divisors (74749820962023).

221102102000121 is a wasteful number, since it uses less digits than its factorization.

221102102000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262280073831.

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

Adding to 221102102000121 its reverse (121000201201122), we get a palindrome (342102303201243).

The spelling of 221102102000121 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred two million, one hundred twenty-one", and thus it is an aban number.