11111210112210 has 64 divisors (see below), whose sum is σ = 28718562555648. Its totient is φ = 2735033013504.

The previous prime is 11111210112151. The next prime is 11111210112287. The reversal of 11111210112210 is 1221101211111.

11111210112210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11111210112210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47640339 + ... + 47873001.

It is an arithmetic number, because the mean of its divisors is an integer number (448727539932).

Almost surely, 2^{11111210112210} is an apocalyptic number.

11111210112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111210112210 is an abundant number, since it is smaller than the sum of its proper divisors (17607352443438).

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

11111210112210 is a wasteful number, since it uses less digits than its factorization.

11111210112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355139.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111210112210 its reverse (1221101211111), we get a palindrome (12332311323321).

The spelling of 11111210112210 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, one hundred twelve thousand, two hundred ten".