110112111221 has 16 divisors (see below), whose sum is σ = 133295178240. Its totient is φ = 88796424960.

The previous prime is 110112111211. The next prime is 110112111251. The reversal of 110112111221 is 122111211011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110112111221 is a prime.

It is a super-2 number, since 2×110112111221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110112111196 and 110112111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110112111211) 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, 144635 + ... + 491063.

It is an arithmetic number, because the mean of its divisors is an integer number (8330948640).

Almost surely, 2^110112111221 is an apocalyptic number.

It is an amenable number.

110112111221 is a deficient number, since it is larger than the sum of its proper divisors (23183067019).

110112111221 is a wasteful number, since it uses less digits than its factorization.

110112111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349124.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 110112111221 its reverse (122111211011), we get a palindrome (232223322232).

The spelling of 110112111221 in words is "one hundred ten billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty-one".