11011212103220 has 48 divisors (see below), whose sum is σ = 26479447803648. Its totient is φ = 3767767184640.

The previous prime is 11011212103211. The next prime is 11011212103249. The reversal of 11011212103220 is 2230121211011.

It is a happy number.

11011212103220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78112001 + ... + 78252840.

It is an arithmetic number, because the mean of its divisors is an integer number (551655162576).

Almost surely, 2^{11011212103220} is an apocalyptic number.

11011212103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011212103220 is an abundant number, since it is smaller than the sum of its proper divisors (15468235700428).

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

11011212103220 is a wasteful number, since it uses less digits than its factorization.

11011212103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156365360 (or 156365358 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11011212103220 its reverse (2230121211011), we get a palindrome (13241333314231).

The spelling of 11011212103220 in words is "eleven trillion, eleven billion, two hundred twelve million, one hundred three thousand, two hundred twenty".