201112102220004 has 108 divisors (see below), whose sum is σ = 531604366097532. Its totient is φ = 64101732393600.

The previous prime is 201112102219939. The next prime is 201112102220063. The reversal of 201112102220004 is 400022201211102.

It can be written as a sum of positive squares in 2 ways, for example, as 107969722159104 + 93142380060900 = 10390848^2 + 9651030^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56568694 + ... + 60018674.

Almost surely, 2^{201112102220004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201112102220004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265802183048766).

201112102220004 is an abundant number, since it is smaller than the sum of its proper divisors (330492263877528).

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

201112102220004 is a wasteful number, since it uses less digits than its factorization.

201112102220004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453098 (or 3453070 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201112102220004 its reverse (400022201211102), we get a palindrome (601134303431106).

The spelling of 201112102220004 in words is "two hundred one trillion, one hundred twelve billion, one hundred two million, two hundred twenty thousand, four".