111223230221987 has 8 divisors (see below), whose sum is σ = 119779100602896. Its totient is φ = 102667393739232.

The previous prime is 111223230221977. The next prime is 111223230221993. The reversal of 111223230221987 is 789122032322111.

It is a happy number.

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 111223230221987 - 2²⁶ = 111223163113123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111223230221977) 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, 1443908 + ... + 14984369.

It is an arithmetic number, because the mean of its divisors is an integer number (14972387575362).

Almost surely, 2^{111223230221987} is an apocalyptic number.

111223230221987 is a deficient number, since it is larger than the sum of its proper divisors (8555870380909).

111223230221987 is a wasteful number, since it uses less digits than its factorization.

111223230221987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16949077.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 111223230221987 in words is "one hundred eleven trillion, two hundred twenty-three billion, two hundred thirty million, two hundred twenty-one thousand, nine hundred eighty-seven".