111121111022000 has 160 divisors (see below), whose sum is σ = 269911056729600. Its totient is φ = 44247045120000.

The previous prime is 111121111021997. The next prime is 111121111022083. The reversal of 111121111022000 is 220111121111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391680200 + ... + 391963800.

It is an arithmetic number, because the mean of its divisors is an integer number (1686944104560).

Almost surely, 2^{111121111022000} is an apocalyptic number.

111121111022000 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 111121111022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134955528364800).

111121111022000 is an abundant number, since it is smaller than the sum of its proper divisors (158789945707600).

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

111121111022000 is a wasteful number, since it uses less digits than its factorization.

111121111022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284512 (or 284496 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111121111022000 its reverse (220111121111), we get a palindrome (111341222143111).

The spelling of 111121111022000 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred eleven million, twenty-two thousand".