111220201010000 has 200 divisors, whose sum is σ = 284623857460800. Its totient is φ = 41971703040000.

The previous prime is 111220201009847. The next prime is 111220201010027. The reversal of 111220201010000 is 10102022111.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×111220201010000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44575541 + ... + 47004459.

It is an arithmetic number, because the mean of its divisors is an integer number (1423119287304).

Almost surely, 2^{111220201010000} is an apocalyptic number.

111220201010000 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 111220201010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142311928730400).

111220201010000 is an abundant number, since it is smaller than the sum of its proper divisors (173403656450800).

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

111220201010000 is a wasteful number, since it uses less digits than its factorization.

111220201010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429207 (or 2429186 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111220201010000 its reverse (10102022111), we get a palindrome (111230303032111).

The spelling of 111220201010000 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, ten thousand".