111243022442 has 16 divisors (see below), whose sum is σ = 175722112800. Its totient is φ = 52671492720.

The previous prime is 111243022441. The next prime is 111243022459. The reversal of 111243022442 is 244220342111.

It is not an unprimeable number, because it can be changed into a prime (111243022441) 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, 536909 + ... + 714672.

It is an arithmetic number, because the mean of its divisors is an integer number (10982632050).

Almost surely, 2^111243022442 is an apocalyptic number.

111243022442 is a deficient number, since it is larger than the sum of its proper divisors (64479090358).

111243022442 is a wasteful number, since it uses less digits than its factorization.

111243022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253941.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 111243022442 its reverse (244220342111), we get a palindrome (355463364553).

The spelling of 111243022442 in words is "one hundred eleven billion, two hundred forty-three million, twenty-two thousand, four hundred forty-two".