110111102221221 has 24 divisors (see below), whose sum is σ = 160517477652480. Its totient is φ = 72731369170656.

The previous prime is 110111102221213. The next prime is 110111102221231. The reversal of 110111102221221 is 122122201111011.

It is a happy number.

110111102221221 is a `hidden beast` number, since 1 + 10 + 111 + 102 + 221 + 221 = 666.

It is not a de Polignac number, because 110111102221221 - 2³ = 110111102221213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110111102221194 and 110111102221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111102221231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63979266 + ... + 65677763.

It is an arithmetic number, because the mean of its divisors is an integer number (6688228235520).

Almost surely, 2^{110111102221221} is an apocalyptic number.

It is an amenable number.

110111102221221 is a deficient number, since it is larger than the sum of its proper divisors (50406375431259).

110111102221221 is a wasteful number, since it uses less digits than its factorization.

110111102221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129657905 (or 129657902 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 110111102221221 its reverse (122122201111011), we get a palindrome (232233303332232).

The spelling of 110111102221221 in words is "one hundred ten trillion, one hundred eleven billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-one".