111220121200203 has 12 divisors (see below), whose sum is σ = 160737150064608. Its totient is φ = 74107117980720.

The previous prime is 111220121200187. The next prime is 111220121200289. The reversal of 111220121200203 is 302002121022111.

111220121200203 is a `hidden beast` number, since 111 + 220 + 12 + 120 + 0 + 203 = 666.

It is not a de Polignac number, because 111220121200203 - 2⁴ = 111220121200187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220121205203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3302439400 + ... + 3302473077.

It is an arithmetic number, because the mean of its divisors is an integer number (13394762505384).

Almost surely, 2^{111220121200203} is an apocalyptic number.

111220121200203 is a deficient number, since it is larger than the sum of its proper divisors (49517028864405).

111220121200203 is a wasteful number, since it uses less digits than its factorization.

111220121200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604914354 (or 6604914351 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111220121200203 its reverse (302002121022111), we get a palindrome (413222242222314).

The spelling of 111220121200203 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred thousand, two hundred three".