221110200100121 has 8 divisors (see below), whose sum is σ = 226618995207264. Its totient is φ = 215618073058080.

The previous prime is 221110200100117. The next prime is 221110200100129. The reversal of 221110200100121 is 121001002011122.

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 221110200100121 - 2² = 221110200100117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221110200100096 and 221110200100105.

It is not an unprimeable number, because it can be changed into a prime (221110200100129) 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, 4166989415 + ... + 4167042476.

It is an arithmetic number, because the mean of its divisors is an integer number (28327374400908).

Almost surely, 2^{221110200100121} is an apocalyptic number.

It is an amenable number.

221110200100121 is a deficient number, since it is larger than the sum of its proper divisors (5508795107143).

221110200100121 is an equidigital number, since it uses as much as digits as its factorization.

221110200100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334032551.

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

Adding to 221110200100121 its reverse (121001002011122), we get a palindrome (342111202111243).

The spelling of 221110200100121 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred million, one hundred thousand, one hundred twenty-one".