111201002121000 has 256 divisors, whose sum is σ = 382235189656320. Its totient is φ = 26690908800000.

The previous prime is 111201002120969. The next prime is 111201002121019. The reversal of 111201002121000 is 121200102111.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 63 ways as a sum of consecutive naturals, for example, 13348819 + ... + 20014818.

It is an arithmetic number, because the mean of its divisors is an integer number (1493106209595).

Almost surely, 2^{111201002121000} is an apocalyptic number.

111201002121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201002121000 is an abundant number, since it is smaller than the sum of its proper divisors (271034187535320).

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

111201002121000 is a wasteful number, since it uses less digits than its factorization.

111201002121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33363773 (or 33363759 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111201002121000 its reverse (121200102111), we get a palindrome (111322202223111).

The spelling of 111201002121000 in words is "one hundred eleven trillion, two hundred one billion, two million, one hundred twenty-one thousand".