111221210200120 has 32 divisors (see below), whose sum is σ = 250250986984320. Its totient is φ = 44487903807360.

The previous prime is 111221210200103. The next prime is 111221210200129. The reversal of 111221210200120 is 21002012122111.

It is a junction number, because it is equal to n+sod(n) for n = 111221210200094 and 111221210200103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221210200129) 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, 15021867 + ... + 21168346.

It is an arithmetic number, because the mean of its divisors is an integer number (7820343343260).

Almost surely, 2^{111221210200120} is an apocalyptic number.

111221210200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221210200120 is an abundant number, since it is smaller than the sum of its proper divisors (139029776784200).

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

111221210200120 is a wasteful number, since it uses less digits than its factorization.

111221210200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36267055 (or 36267051 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111221210200120 its reverse (21002012122111), we get a palindrome (132223222322231).

The spelling of 111221210200120 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, two hundred thousand, one hundred twenty".