11012221133220 has 48 divisors (see below), whose sum is σ = 30839184669888. Its totient is φ = 2936119397760.

The previous prime is 11012221133213. The next prime is 11012221133269. The reversal of 11012221133220 is 2233112221011.

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, 14402499 + ... + 15147818.

It is an arithmetic number, because the mean of its divisors is an integer number (642483013956).

Almost surely, 2^{11012221133220} is an apocalyptic number.

11012221133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11012221133220 is an abundant number, since it is smaller than the sum of its proper divisors (19826963536668).

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

11012221133220 is a wasteful number, since it uses less digits than its factorization.

11012221133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29556540 (or 29556538 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11012221133220 its reverse (2233112221011), we get a palindrome (13245333354231).

The spelling of 11012221133220 in words is "eleven trillion, twelve billion, two hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty".