11111020222110 has 64 divisors (see below), whose sum is σ = 28307647368000. Its totient is φ = 2781479401472.

The previous prime is 11111020222051. The next prime is 11111020222111. The reversal of 11111020222110 is 1122202011111.

It is a happy number.

It is a super-2 number, since 2×11111020222110² (a number of 27 digits) contains 22 as substring.

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 11111020222110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111020222111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27804585 + ... + 28201364.

It is an arithmetic number, because the mean of its divisors is an integer number (442306990125).

Almost surely, 2^{11111020222110} is an apocalyptic number.

11111020222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111020222110 is an abundant number, since it is smaller than the sum of its proper divisors (17196627145890).

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

11111020222110 is a wasteful number, since it uses less digits than its factorization.

11111020222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56006365.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11111020222110 its reverse (1122202011111), we get a palindrome (12233222233221).

The spelling of 11111020222110 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred twenty-two thousand, one hundred ten".