110000111221 has 48 divisors (see below), whose sum is σ = 150407167680. Its totient is φ = 79080261120.

The previous prime is 110000111153. The next prime is 110000111269. The reversal of 110000111221 is 122111000011.

It is not a de Polignac number, because 110000111221 - 2³¹ = 107852627573 is a prime.

It is a super-2 number, since 2×110000111221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110000111198 and 110000111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000111021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22833405 + ... + 22838221.

It is an arithmetic number, because the mean of its divisors is an integer number (3133482660).

Almost surely, 2^110000111221 is an apocalyptic number.

110000111221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110000111221 is a deficient number, since it is larger than the sum of its proper divisors (40407056459).

110000111221 is a wasteful number, since it uses less digits than its factorization.

110000111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114 (or 8107 counting only the distinct ones).

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

Adding to 110000111221 its reverse (122111000011), we get a palindrome (232111111232).

It can be divided in two parts, 11000011 and 1221, that multiplied together give a palindrome (13431013431).

The spelling of 110000111221 in words is "one hundred ten billion, one hundred eleven thousand, two hundred twenty-one".