111042021442 has 16 divisors (see below), whose sum is σ = 191268554400. Its totient is φ = 47817138240.

The previous prime is 111042021397. The next prime is 111042021463. The reversal of 111042021442 is 244120240111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132824967 + ... + 132825802.

It is an arithmetic number, because the mean of its divisors is an integer number (11954284650).

Almost surely, 2^111042021442 is an apocalyptic number.

111042021442 is a deficient number, since it is larger than the sum of its proper divisors (80226532958).

111042021442 is a wasteful number, since it uses less digits than its factorization.

111042021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265650801.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 111042021442 its reverse (244120240111), we get a palindrome (355162261553).

The spelling of 111042021442 in words is "one hundred eleven billion, forty-two million, twenty-one thousand, four hundred forty-two".