11011010221220 has 24 divisors (see below), whose sum is σ = 23123419401600. Its totient is φ = 4404347338592.

The previous prime is 11011010221207. The next prime is 11011010221229. The reversal of 11011010221220 is 2212201011011.

It is a super-2 number, since 2×11011010221220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11011010221195 and 11011010221204.

It is not an unprimeable number, because it can be changed into a prime (11011010221229) 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 7 ways as a sum of consecutive naturals, for example, 1938050 + ... + 5077209.

It is an arithmetic number, because the mean of its divisors is an integer number (963475808400).

Almost surely, 2^{11011010221220} is an apocalyptic number.

11011010221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011010221220 is an abundant number, since it is smaller than the sum of its proper divisors (12112409180380).

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

11011010221220 is a wasteful number, since it uses less digits than its factorization.

11011010221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093747 (or 7093745 counting only the distinct ones).

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

Adding to 11011010221220 its reverse (2212201011011), we get a palindrome (13223211232231).

The spelling of 11011010221220 in words is "eleven trillion, eleven billion, ten million, two hundred twenty-one thousand, two hundred twenty".