111222043242 has 16 divisors (see below), whose sum is σ = 227869552512. Its totient is φ = 36169770080.

The previous prime is 111222043241. The next prime is 111222043267. The reversal of 111222043242 is 242340222111.

It is not an unprimeable number, because it can be changed into a prime (111222043241) 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, 226060818 + ... + 226061309.

It is an arithmetic number, because the mean of its divisors is an integer number (14241847032).

Almost surely, 2^111222043242 is an apocalyptic number.

111222043242 is an abundant number, since it is smaller than the sum of its proper divisors (116647509270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222043242 is a wasteful number, since it uses less digits than its factorization.

111222043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452122173.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 111222043242 its reverse (242340222111), we get a palindrome (353562265353).

The spelling of 111222043242 in words is "one hundred eleven billion, two hundred twenty-two million, forty-three thousand, two hundred forty-two".