111222020123 has 8 divisors (see below), whose sum is σ = 111379548960. Its totient is φ = 111064565440.

The previous prime is 111222020111. The next prime is 111222020183. The reversal of 111222020123 is 321020222111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111222020123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222020183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3426293 + ... + 3458601.

It is an arithmetic number, because the mean of its divisors is an integer number (13922443620).

Almost surely, 2^111222020123 is an apocalyptic number.

111222020123 is a deficient number, since it is larger than the sum of its proper divisors (157528837).

111222020123 is an equidigital number, since it uses as much as digits as its factorization.

111222020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37077.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 111222020123 its reverse (321020222111), we get a palindrome (432242242234).

The spelling of 111222020123 in words is "one hundred eleven billion, two hundred twenty-two million, twenty thousand, one hundred twenty-three".