111043204221 has 8 divisors (see below), whose sum is σ = 148060759680. Its totient is φ = 74027225792.

The previous prime is 111043204193. The next prime is 111043204243. The reversal of 111043204221 is 122402340111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111043204221 - 2⁵ = 111043204189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111023204221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218805 + ... + 519578.

It is an arithmetic number, because the mean of its divisors is an integer number (18507594960).

Almost surely, 2^111043204221 is an apocalyptic number.

It is an amenable number.

111043204221 is a deficient number, since it is larger than the sum of its proper divisors (37017555459).

111043204221 is an equidigital number, since it uses as much as digits as its factorization.

111043204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788515.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 111043204221 its reverse (122402340111), we get a palindrome (233445544332).

It can be divided in two parts, 11104320 and 4221, that added together give a triangular number (11108541 = T₄₇₁₃).

The spelling of 111043204221 in words is "one hundred eleven billion, forty-three million, two hundred four thousand, two hundred twenty-one".