11112210 has 96 divisors (see below), whose sum is σ = 30730752. Its totient is φ = 2782080.

The previous prime is 11112209. The next prime is 11112217. The reversal of 11112210 is 1221111.

It is a happy number.

It is a super-2 number, since 2×11112210² = 246962422168200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11112192 and 11112201.

It is not an unprimeable number, because it can be changed into a prime (11112217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156475 + ... + 156545.

It is an arithmetic number, because the mean of its divisors is an integer number (320112).

Almost surely, 2^11112210 is an apocalyptic number.

11112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11112210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15365376).

11112210 is an abundant number, since it is smaller than the sum of its proper divisors (19618542).

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

11112210 is a wasteful number, since it uses less digits than its factorization.

11112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 11112210 is about 3333.4981625914. The cubic root of 11112210 is about 223.1516727759.

Adding to 11112210 its reverse (1221111), we get a palindrome (12333321).

It can be divided in two parts, 1111 and 2210, that added together give a triangular number (3321 = T₈₁).

The spelling of 11112210 in words is "eleven million, one hundred twelve thousand, two hundred ten".