111202012018 has 16 divisors (see below), whose sum is σ = 172438159104. Its totient is φ = 53727925680.

The previous prime is 111202011979. The next prime is 111202012037. The reversal of 111202012018 is 810210202111.

It is a junction number, because it is equal to n+sod(n) for n = 111202011986 and 111202012004.

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, 1282680 + ... + 1366627.

It is an arithmetic number, because the mean of its divisors is an integer number (10777384944).

Almost surely, 2^111202012018 is an apocalyptic number.

111202012018 is a deficient number, since it is larger than the sum of its proper divisors (61236147086).

111202012018 is a wasteful number, since it uses less digits than its factorization.

111202012018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650017.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111202012018 its reverse (810210202111), we get a palindrome (921412214129).

The spelling of 111202012018 in words is "one hundred eleven billion, two hundred two million, twelve thousand, eighteen".