111001021010000 has 400 divisors, whose sum is σ = 298529174534976. Its totient is φ = 39963880000000.

The previous prime is 111001021009997. The next prime is 111001021010027. The reversal of 111001021010000 is 10120100111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×111001021010000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 111001021010000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1344268715 + ... + 1344351285.

Almost surely, 2^{111001021010000} is an apocalyptic number.

111001021010000 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 111001021010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149264587267488).

111001021010000 is an abundant number, since it is smaller than the sum of its proper divisors (187528153524976).

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

111001021010000 is an equidigital number, since it uses as much as digits as its factorization.

111001021010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82733 (or 82690 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111001021010000 its reverse (10120100111), we get a palindrome (111011141110111).

The spelling of 111001021010000 in words is "one hundred eleven trillion, one billion, twenty-one million, ten thousand".