111212042 has 16 divisors (see below), whose sum is σ = 173491200. Its totient is φ = 53402160.

The previous prime is 111212041. The next prime is 111212051. The reversal of 111212042 is 240212111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111212041) 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, 6059 + ... + 16097.

It is an arithmetic number, because the mean of its divisors is an integer number (10843200).

Almost surely, 2^111212042 is an apocalyptic number.

111212042 is a deficient number, since it is larger than the sum of its proper divisors (62279158).

111212042 is a wasteful number, since it uses less digits than its factorization.

111212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 111212042 is about 10545.7120195841. The cubic root of 111212042 is about 480.8953802457.

Adding to 111212042 its reverse (240212111), we get a palindrome (351424153).

The spelling of 111212042 in words is "one hundred eleven million, two hundred twelve thousand, forty-two".