201111120220100 has 288 divisors, whose sum is σ = 487490140634112. Its totient is φ = 71623552000000.

The previous prime is 201111120220093. The next prime is 201111120220133. The reversal of 201111120220100 is 1022021111102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3597602150 + ... + 3597658050.

It is an arithmetic number, because the mean of its divisors is an integer number (1692674099424).

Almost surely, 2^{201111120220100} is an apocalyptic number.

201111120220100 is a gapful number since it is divisible by the number (20) 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 201111120220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243745070317056).

201111120220100 is an abundant number, since it is smaller than the sum of its proper divisors (286379020414012).

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

201111120220100 is a wasteful number, since it uses less digits than its factorization.

201111120220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56967 (or 56960 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111120220100 its reverse (1022021111102), we get a palindrome (202133141331202).

The spelling of 201111120220100 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty thousand, one hundred".