11120221210212 has 18 divisors (see below), whose sum is σ = 28109448059238. Its totient is φ = 3706740403392.

The previous prime is 11120221210199. The next prime is 11120221210213. The reversal of 11120221210212 is 21201212202111.

11120221210212 is a `hidden beast` number, since 1 + 1 + 1 + 20 + 221 + 210 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9596216146176 + 1524005064036 = 3097776^2 + 1234506^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (11120221210213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154447516773 + ... + 154447516844.

It is an arithmetic number, because the mean of its divisors is an integer number (1561636003291).

Almost surely, 2^{11120221210212} is an apocalyptic number.

11120221210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11120221210212 is an abundant number, since it is smaller than the sum of its proper divisors (16989226849026).

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

11120221210212 is a wasteful number, since it uses less digits than its factorization.

11120221210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308895033627 (or 308895033622 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11120221210212 its reverse (21201212202111), we get a palindrome (32321433412323).

The spelling of 11120221210212 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, two hundred twelve".