11112011012220 has 48 divisors (see below), whose sum is σ = 31122047368608. Its totient is φ = 2962401361920.

The previous prime is 11112011012209. The next prime is 11112011012227. The reversal of 11112011012220 is 2221011021111.

It is a happy number.

11112011012220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11112011012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112011012227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24825541 + ... + 25269180.

It is an arithmetic number, because the mean of its divisors is an integer number (648375986846).

Almost surely, 2^{11112011012220} is an apocalyptic number.

11112011012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112011012220 is an abundant number, since it is smaller than the sum of its proper divisors (20010036356388).

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

11112011012220 is a wasteful number, since it uses less digits than its factorization.

11112011012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50098430 (or 50098428 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112011012220 its reverse (2221011021111), we get a palindrome (13333022033331).

The spelling of 11112011012220 in words is "eleven trillion, one hundred twelve billion, eleven million, twelve thousand, two hundred twenty".