111220001223 has 8 divisors (see below), whose sum is σ = 152301263088. Its totient is φ = 72142703424.

The previous prime is 111220001203. The next prime is 111220001227. The reversal of 111220001223 is 322100022111.

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

It is not a de Polignac number, because 111220001223 - 2⁶ = 111220001159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220001227) 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, 500990886 + ... + 500991107.

It is an arithmetic number, because the mean of its divisors is an integer number (19037657886).

Almost surely, 2^111220001223 is an apocalyptic number.

111220001223 is a deficient number, since it is larger than the sum of its proper divisors (41081261865).

111220001223 is a wasteful number, since it uses less digits than its factorization.

111220001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001982033.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 111220001223 its reverse (322100022111), we get a palindrome (433320023334).

The spelling of 111220001223 in words is "one hundred eleven billion, two hundred twenty million, one thousand, two hundred twenty-three".