11112223 has 8 divisors (see below), whose sum is σ = 11340560. Its totient is φ = 10886400.

The previous prime is 11112217. The next prime is 11112239. The reversal of 11112223 is 32221111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11112223 - 2¹³ = 11104031 is a prime.

It is the 3334-th Hogben number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112253) by changing a digit.

It is a nontrivial repunit in base 3333.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10048 + ... + 11098.

It is an arithmetic number, because the mean of its divisors is an integer number (1417570).

Almost surely, 2^11112223 is an apocalyptic number.

11112223 is a deficient number, since it is larger than the sum of its proper divisors (228337).

11112223 is a wasteful number, since it uses less digits than its factorization.

11112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its digits is 24, while the sum is 13.

The square root of 11112223 is about 3333.5001124944. The cubic root of 11112223 is about 223.1517597964.

Adding to 11112223 its reverse (32221111), we get a palindrome (43333334).

It can be divided in two parts, 1111 and 2223, that multiplied together give a triangular number (2469753 = T₂₂₂₂).

The spelling of 11112223 in words is "eleven million, one hundred twelve thousand, two hundred twenty-three".