111223003221 has 24 divisors (see below), whose sum is σ = 175273610304. Its totient is φ = 67402834560.

The previous prime is 111223003201. The next prime is 111223003223. The reversal of 111223003221 is 122300322111.

111223003221 is a `hidden beast` number, since 1 + 112 + 230 + 0 + 322 + 1 = 666.

It is not a de Polignac number, because 111223003221 - 2¹⁴ = 111222986837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111223003194 and 111223003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223003223) 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, 1615320 + ... + 1682766.

It is an arithmetic number, because the mean of its divisors is an integer number (7303067096).

Almost surely, 2^111223003221 is an apocalyptic number.

111223003221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111223003221 is a deficient number, since it is larger than the sum of its proper divisors (64050607083).

111223003221 is a wasteful number, since it uses less digits than its factorization.

111223003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84121 (or 84118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111223003221 its reverse (122300322111), we get a palindrome (233523325332).

It can be divided in two parts, 11 and 1223003221, that multiplied together give a palindrome (13453035431).

The spelling of 111223003221 in words is "one hundred eleven billion, two hundred twenty-three million, three thousand, two hundred twenty-one".