110111012101221 has 8 divisors (see below), whose sum is σ = 150782647201824. Its totient is φ = 71423359200720.

The previous prime is 110111012101141. The next prime is 110111012101229. The reversal of 110111012101221 is 122101210111011.

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

It is not a de Polignac number, because 110111012101221 - 2²² = 110111007906917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110111012101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111012101229) 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, 495995549895 + ... + 495995550116.

It is an arithmetic number, because the mean of its divisors is an integer number (18847830900228).

Almost surely, 2^{110111012101221} is an apocalyptic number.

It is an amenable number.

110111012101221 is a deficient number, since it is larger than the sum of its proper divisors (40671635100603).

110111012101221 is an equidigital number, since it uses as much as digits as its factorization.

110111012101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991991100051.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 110111012101221 its reverse (122101210111011), we get a palindrome (232212222212232).

The spelling of 110111012101221 in words is "one hundred ten trillion, one hundred eleven billion, twelve million, one hundred one thousand, two hundred twenty-one".