111121112210004 has 144 divisors (see below), whose sum is σ = 302659768739328. Its totient is φ = 34172647524864.

The previous prime is 111121112209979. The next prime is 111121112210039. The reversal of 111121112210004 is 400012211121111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9532559344 + ... + 9532571000.

Almost surely, 2^{111121112210004} is an apocalyptic number.

It is an amenable number.

111121112210004 is an abundant number, since it is smaller than the sum of its proper divisors (191538656529324).

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

111121112210004 is a wasteful number, since it uses less digits than its factorization.

111121112210004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934 (or 20929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111121112210004 its reverse (400012211121111), we get a palindrome (511133323331115).

The spelling of 111121112210004 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, four".