110101001221 has 8 divisors (see below), whose sum is σ = 115269850080. Its totient is φ = 105023636592.

The previous prime is 110101001201. The next prime is 110101001251. The reversal of 110101001221 is 122100101011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110101001221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110101001198 and 110101001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101001201) 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, 22868595 + ... + 22873408.

It is an arithmetic number, because the mean of its divisors is an integer number (14408731260).

Almost surely, 2^110101001221 is an apocalyptic number.

It is an amenable number.

110101001221 is a deficient number, since it is larger than the sum of its proper divisors (5168848859).

110101001221 is an equidigital number, since it uses as much as digits as its factorization.

110101001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45742115.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110101001221 its reverse (122100101011), we get a palindrome (232201102232).

The spelling of 110101001221 in words is "one hundred ten billion, one hundred one million, one thousand, two hundred twenty-one".