111122021110000 has 100 divisors (see below), whose sum is σ = 269110504841464. Its totient is φ = 44436751200000.

The previous prime is 111122021109997. The next prime is 111122021110007. The reversal of 111122021110000 is 11120221111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122021110007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35404690 + ... + 38415310.

Almost surely, 2^{111122021110000} is an apocalyptic number.

111122021110000 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 111122021110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134555252420732).

111122021110000 is an abundant number, since it is smaller than the sum of its proper divisors (157988483731464).

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

111122021110000 is an equidigital number, since it uses as much as digits as its factorization.

111122021110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014340 (or 3014319 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111122021110000 its reverse (11120221111), we get a palindrome (111133141331111).

The spelling of 111122021110000 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty-one million, one hundred ten thousand".