111000212001000 has 384 divisors, whose sum is σ = 447625350057600. Its totient is φ = 25371476726400.

The previous prime is 111000212000983. The next prime is 111000212001047. The reversal of 111000212001000 is 100212000111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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 95 ways as a sum of consecutive naturals, for example, 40627194 + ... + 43273193.

It is an arithmetic number, because the mean of its divisors is an integer number (1165691015775).

Almost surely, 2^{111000212001000} is an apocalyptic number.

111000212001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000212001000 is an abundant number, since it is smaller than the sum of its proper divisors (336625138056600).

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

111000212001000 is a wasteful number, since it uses less digits than its factorization.

111000212001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83900431 (or 83900404 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111000212001000 its reverse (100212000111), we get a palindrome (111100424001111).

The spelling of 111000212001000 in words is "one hundred eleven trillion, two hundred twelve million, one thousand".