111212044442 has 16 divisors (see below), whose sum is σ = 168945008640. Its totient is φ = 54897169392.

The previous prime is 111212044429. The next prime is 111212044459. The reversal of 111212044442 is 244440212111.

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, 2214503 + ... + 2264165.

It is an arithmetic number, because the mean of its divisors is an integer number (10559063040).

Almost surely, 2^111212044442 is an apocalyptic number.

111212044442 is a deficient number, since it is larger than the sum of its proper divisors (57732964198).

111212044442 is a wasteful number, since it uses less digits than its factorization.

111212044442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63917.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 111212044442 its reverse (244440212111), we get a palindrome (355652256553).

The spelling of 111212044442 in words is "one hundred eleven billion, two hundred twelve million, forty-four thousand, four hundred forty-two".