111201220120004 has 12 divisors (see below), whose sum is σ = 222402440240064. Its totient is φ = 47657665765704.

The previous prime is 111201220119989. The next prime is 111201220120007. The reversal of 111201220120004 is 400021022102111.

111201220120004 is an admirable number.

It is a super-2 number, since 2×111201220120004² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111201220120007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985736073544 + ... + 1985736073599.

It is an arithmetic number, because the mean of its divisors is an integer number (18533536686672).

Almost surely, 2^{111201220120004} is an apocalyptic number.

111201220120004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111201220120004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111201220120004 is a wasteful number, since it uses less digits than its factorization.

111201220120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971472147154 (or 3971472147152 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111201220120004 its reverse (400021022102111), we get a palindrome (511222242222115).

The spelling of 111201220120004 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty million, one hundred twenty thousand, four".