111110210020000 has 120 divisors (see below), whose sum is σ = 273360933715716. Its totient is φ = 44441945856000.

The previous prime is 111110210019997. The next prime is 111110210020049. The reversal of 111110210020000 is 20012011111.

It can be written as a sum of positive squares in 10 ways, for example, as 30982003557904 + 80128206462096 = 5566148^2 + 8951436^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 454217724 + ... + 454462276.

Almost surely, 2^{111110210020000} is an apocalyptic number.

111110210020000 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 111110210020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136680466857858).

111110210020000 is an abundant number, since it is smaller than the sum of its proper divisors (162250723695716).

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

111110210020000 is an equidigital number, since it uses as much as digits as its factorization.

111110210020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267300 (or 267277 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111110210020000 its reverse (20012011111), we get a palindrome (111130222031111).

The spelling of 111110210020000 in words is "one hundred eleven trillion, one hundred ten billion, two hundred ten million, twenty thousand".