11012002111220 has 192 divisors, whose sum is σ = 26695368806400. Its totient is φ = 3780034352640.

The previous prime is 11012002111213. The next prime is 11012002111223. The reversal of 11012002111220 is 2211120021011.

It is a junction number, because it is equal to n+sod(n) for n = 11012002111195 and 11012002111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012002111223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32162891 + ... + 32503469.

It is an arithmetic number, because the mean of its divisors is an integer number (139038379200).

Almost surely, 2^{11012002111220} is an apocalyptic number.

11012002111220 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 11012002111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13347684403200).

11012002111220 is an abundant number, since it is smaller than the sum of its proper divisors (15683366695180).

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

11012002111220 is a wasteful number, since it uses less digits than its factorization.

11012002111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340758 (or 340756 counting only the distinct ones).

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

Adding to 11012002111220 its reverse (2211120021011), we get a palindrome (13223122132231).

The spelling of 11012002111220 in words is "eleven trillion, twelve billion, two million, one hundred eleven thousand, two hundred twenty".