11111220022210 has 128 divisors (see below), whose sum is σ = 25596568166400. Its totient is φ = 3442497508800.

The previous prime is 11111220022061. The next prime is 11111220022213. The reversal of 11111220022210 is 1222002211111.

It is not an unprimeable number, because it can be changed into a prime (11111220022213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5419195 + ... + 7182625.

It is an arithmetic number, because the mean of its divisors is an integer number (199973188800).

Almost surely, 2^{11111220022210} is an apocalyptic number.

11111220022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111220022210 is an abundant number, since it is smaller than the sum of its proper divisors (14485348144190).

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

11111220022210 is a wasteful number, since it uses less digits than its factorization.

11111220022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763637 (or 1763623 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11111220022210 its reverse (1222002211111), we get a palindrome (12333222233321).

The spelling of 11111220022210 in words is "eleven trillion, one hundred eleven billion, two hundred twenty million, twenty-two thousand, two hundred ten".