113221020000 has 480 divisors, whose sum is σ = 429024968064. Its totient is φ = 25830400000.

The previous prime is 113221019993. The next prime is 113221020019. The reversal of 113221020000 is 20122311.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 11214955 + ... + 11225045.

Almost surely, 2^113221020000 is an apocalyptic number.

113221020000 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 113221020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214512484032).

113221020000 is an abundant number, since it is smaller than the sum of its proper divisors (315803948064).

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

113221020000 is a wasteful number, since it uses less digits than its factorization.

113221020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152 (or 10129 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 113221020000 its reverse (20122311), we get a palindrome (113241142311).

The spelling of 113221020000 in words is "one hundred thirteen billion, two hundred twenty-one million, twenty thousand".