111201220000 has 240 divisors, whose sum is σ = 296157974112. Its totient is φ = 40844160000.

The previous prime is 111201219989. The next prime is 111201220033. The reversal of 111201220000 is 22102111.

It is a super-2 number, since 2×111201220000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54858987 + ... + 54861013.

Almost surely, 2^111201220000 is an apocalyptic number.

111201220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111201220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148078987056).

111201220000 is an abundant number, since it is smaller than the sum of its proper divisors (184956754112).

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

111201220000 is a wasteful number, since it uses less digits than its factorization.

111201220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111201220000 its reverse (22102111), we get a palindrome (111223322111).

The spelling of 111201220000 in words is "one hundred eleven billion, two hundred one million, two hundred twenty thousand".