110111110101221 has 16 divisors (see below), whose sum is σ = 111728670415488. Its totient is φ = 108495421574400.

The previous prime is 110111110101199. The next prime is 110111110101277. The reversal of 110111110101221 is 122101011111011.

It is a cyclic number.

It is not a de Polignac number, because 110111110101221 - 2¹⁴ = 110111110084837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110111110101196 and 110111110101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111110101821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855094481 + ... + 855223241.

It is an arithmetic number, because the mean of its divisors is an integer number (6983041900968).

Almost surely, 2^{110111110101221} is an apocalyptic number.

It is an amenable number.

110111110101221 is a deficient number, since it is larger than the sum of its proper divisors (1617560314267).

110111110101221 is a wasteful number, since it uses less digits than its factorization.

110111110101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135932.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 110111110101221 its reverse (122101011111011), we get a palindrome (232212121212232).

The spelling of 110111110101221 in words is "one hundred ten trillion, one hundred eleven billion, one hundred ten million, one hundred one thousand, two hundred twenty-one".