111221112022200 has 144 divisors (see below), whose sum is σ = 383612637506280. Its totient is φ = 28857369588480.

The previous prime is 111221112022183. The next prime is 111221112022211. The reversal of 111221112022200 is 2220211122111.

111221112022200 is a `hidden beast` number, since 1 + 11 + 221 + 11 + 202 + 220 + 0 = 666.

It is a super-2 number, since 2×111221112022200² (a number of 29 digits) contains 22 as substring.

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 35 ways as a sum of consecutive naturals, for example, 834926734 + ... + 835059933.

Almost surely, 2^{111221112022200} is an apocalyptic number.

111221112022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221112022200 is an abundant number, since it is smaller than the sum of its proper divisors (272391525484080).

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

111221112022200 is a wasteful number, since it uses less digits than its factorization.

111221112022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669986726 (or 1669986714 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111221112022200 its reverse (2220211122111), we get a palindrome (113441323144311).

The spelling of 111221112022200 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred".